{"id":164159,"date":"2026-05-09T01:00:00","date_gmt":"2026-05-09T00:00:00","guid":{"rendered":"https:\/\/watchman.news\/2026\/05\/why-you-get-headaches-during-exercise-even-when-you-stay-hydrated\/"},"modified":"2026-05-09T05:20:16","modified_gmt":"2026-05-09T05:20:16","slug":"why-you-get-headaches-during-exercise-even-when-you-stay-hydrated","status":"publish","type":"post","link":"https:\/\/watchman.news\/fr\/2026\/05\/why-you-get-headaches-during-exercise-even-when-you-stay-hydrated\/","title":{"rendered":"Why You Get Headaches During Exercise Even When You Stay Hydrated"},"content":{"rendered":"
\n
\n
\n
\n<\/p>\n

A New Series of Health Insights Is on the\u00a0Way<\/p>\n<\/div>\n

\n
IMPORTANT<\/div>\n
\n

A New Series of Health Insights Is on the\u00a0Way<\/p>\n

Our team has been working behind the scenes to prepare new research and practical health strategies for our readers. While we finish preparing what\u2019s coming next, we invite you to explore one of the most-read articles from our library below. See exactly what’s changing \u2192<\/a>\n<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

It\u2019s common to be perfectly hydrated and still get hit with a brutal headache right after a workout. For some, it starts as a subtle throb on both sides of the head. For others, it’s a sudden pounding that stops them in their tracks. These are known as exercise-induced headaches, which some describe as \u201cthe worst headache of my life.\u201d They affect up to 26% of adults, depending on the study.1<\/span><\/sup><\/p>\n

While exercise headaches don\u2019t always mean something is seriously wrong, they\u2019re also not something to brush off. When your brain sends up a signal like that, it\u2019s worth listening. What\u2019s frustrating is how unpredictable they often feel. You drink water, fuel properly, get enough sleep and still end up sidelined by pain. So, what\u2019s actually going on? <\/p>\n

The answer has less to do with how hydrated you are and more to do with how your body regulates pressure and blood flow under stress. You don\u2019t need to give up your workouts to stop the cycle. You just need to understand what\u2019s driving these headaches in the first place. That\u2019s where the science comes in.<\/p>\n

\n
\n<\/figure>\n<\/div>\n

Exercise Headaches Happen When Your Brain Gets Too Hot<\/h2>\n

An article in The Conversation explored why some people develop exertion headaches despite staying hydrated and exercising regularly.2<\/span><\/sup> It examined current theories and findings to help explain what\u2019s actually going on inside your body when these headaches strike.<\/p>\n

\n

\u2022 <\/span>Exercise headaches affect people differently based on how fit they are \u2014<\/strong> These headaches are more common in people new to intense workouts or those who ramp up too fast. They usually happen after a physically demanding session. But what\u2019s considered \u201cstrenuous\u201d really depends on your current fitness level, so even moderate effort could trigger them if you\u2019re not yet adapted.<\/p>\n

\u2022 <\/span>The pain lasts from a few minutes to two full days \u2014<\/strong> However, they sometimes go away in time. The article notes that some people stop getting these headaches after a few months of consistent training. That\u2019s because your cardiovascular system slowly becomes better at handling physical stress and regulating blood flow to your brain.<\/p>\n

\u2022 <\/span>A key cause appears to be how your brain handles heat \u2014<\/strong> Unlike the rest of your body, your brain doesn\u2019t sweat. To cool down, it redirects more blood flow to your head during exercise. This creates higher pressure in your skull, which triggers pain.<\/p>\n

Further, during exercise, your arteries and veins widen to deliver more blood and oxygen to your muscles and organs. The same thing happens in your brain, but in a confined space, this creates extra pressure, especially when you\u2019re already hot or dehydrated. When it\u2019s hot outside, your body sends even more blood to your brain in an attempt to cool it down. This overcompensation results in increased intracranial pressure and worsens the headache.<\/p>\n

\u2022 <\/span>Dehydration compounds the problem, but isn\u2019t always the main trigger \u2014<\/strong> While many people assume they\u2019re getting these headaches from not drinking enough water, hydration alone isn\u2019t the whole story. However, dehydration puts extra stress on your cardiovascular system, which could make your brain\u2019s cooling response more aggressive \u2014 and more painful.<\/p>\n

\u2022 <\/span>Gradual fitness improvements reduce headache risk over time \u2014<\/strong> People who build up slowly tend to report fewer and milder exercise headaches, likely because their blood vessels become more efficient at dilating and contracting with less pressure buildup.<\/p>\n<\/div>\n

Vision Problems and Nausea Are Red Flags You Shouldn\u2019t Ignore<\/h2>\n

Although most exercise headaches are harmless, some are tied to dangerous conditions like brain hemorrhages, infections, or elevated brain pressure.3<\/span><\/sup> If you\u2019re experiencing these headaches for the first time, or if they\u2019re sudden and severe, you should get evaluated. The Cleveland Clinic also broke down how exertion headaches differ from typical head pain.4<\/span><\/sup><\/p>\n

\n

\u2022 <\/span>Some symptoms mimic migraines<\/a> and need to be taken seriously \u2014<\/strong> While throbbing pain on both sides of the head is common, the Cleveland Clinic highlights more serious symptoms like vision changes, nausea and vomiting. If you’re seeing blind spots, getting dizzy or feeling sick to your stomach after workouts, that\u2019s not something to push through.<\/p>\n

\u2022 <\/span>Unlike general tension headaches<\/a>, exertion headaches often feel like a strong pulsing sensation \u2014<\/strong> This typically builds quickly during or after physical activity. They also sometimes feel like a thunderclap \u2014 sudden and explosive. These details matter because understanding your symptoms helps you communicate more clearly with your doctor if you need to seek help. Underlying conditions are rare but important to rule out.<\/p>\n

\u2022 <\/span>If you\u2019ve never had one before, don\u2019t brush it off \u2014<\/strong> First-time exertion headaches, especially if severe or paired with other neurological symptoms, should be evaluated by a medical professional. Confusion, fainting, extreme drowsiness or a headache that lasts more than two days are all red flags.<\/p>\n

Once you understand what\u2019s triggering your symptoms and get the green light from your doctor, you\u2019ll be more confident about pushing forward with your workouts without worrying about the next headache hitting out of nowhere.<\/p>\n<\/div>\n

Why Pushing Too Hard Too Soon Sets You Up for Headaches<\/h2>\n

According to Dr. Ashhar Ali, a neurologist at Henry Ford Health, starting a workout program too aggressively runs the risk of causing your brain and body to react negatively.5<\/span><\/sup> If your system isn\u2019t yet conditioned for exertion, the added pressure from overexertion could show up as a headache. The fix is simple but requires patience: start slow and give your body time to adapt.<\/p>\n

\n

\u2022 <\/span>Dehydration is a major driver of head pain \u2014<\/strong> While it\u2019s possible to get an exercise headache even if you drink plenty of water, Ali emphasizes the systemic impact of dehydration<\/a> on your brain. It doesn\u2019t just leave you tired, it alters fluid balance, increases body strain and heightens the chances of blood vessel dilation in your head, triggering that pounding sensation. \u201cHeadaches are another side effect of not drinking enough water,\u201d he warns.6<\/span><\/sup><\/p>\n

\u2022 <\/span>Heat overload during workouts makes things worse \u2014<\/strong> Exercising in hot environments<\/a>, whether outdoors in direct sun or indoors with poor airflow, is another trigger. What\u2019s more, your clothing choice matters. Heavy fabrics, dark colors, or non-breathable materials trap heat and force your body to work harder to cool down. That extra burden increases pressure in the brain, leading to pain.<\/p>\n

\u2022 <\/span>Altitude training isn\u2019t for everyone, and it\u2019s a problem if you\u2019re not used to it \u2014<\/strong> Working out at higher elevations, especially while traveling, is a serious headache trigger. The oxygen is thinner at higher altitudes, and your brain has to work harder to compensate.<\/p>\n

For people not acclimated to these conditions, the change in oxygen pressure often results in sharp, exertion-related headaches. Ideally, take a few days to adjust before attempting intense exercise in these conditions.<\/p>\n

\u2022 <\/span>These headaches are often mistaken for something else \u2014<\/strong> People frequently misattribute these headaches to stress or muscle tension, when in fact, it\u2019s the training environment and pace that\u2019s to blame. This misdirection leads many to overlook simple fixes like resting, hydrating, staying cool, or adjusting their workout intensity.<\/p>\n<\/div>\n

How to Stop Headaches from Derailing Your Workouts<\/h2>\n

If you\u2019re dealing with headaches after a strength-training session, or even just an intense walk, it\u2019s not in your head, at least not the way you think. The problem isn\u2019t always hydration or a poor night\u2019s sleep. Often, it\u2019s how your brain responds to overheating, overexertion or sudden pressure changes.<\/p>\n

The good news? You don\u2019t have to live with it, and you don\u2019t have to quit your workouts either. These are direct ways to fix the root of the issue and keep your head clear while you train. Here\u2019s what I recommend if you\u2019re trying to avoid exercise-induced headaches:<\/p>\n

\n

1. <\/span>Start with a slow warm-up and build intensity over time \u2014<\/strong> You wouldn\u2019t go from zero to sprint in five seconds, and your brain doesn\u2019t like it either. Give your blood vessels time to adapt by easing into your workout. Start with gentle movements, low weights, or a light walk. If you\u2019ve been sedentary or are just getting back into fitness, your body needs time to relearn how to regulate pressure and blood flow.<\/p>\n

2. <\/span>Fix your hydration before, during and after training \u2014<\/strong> If you\u2019re even slightly dehydrated, your body has to work harder to pump blood, especially to your brain. That raises your risk for pain. Don\u2019t just sip water once your headache starts, get ahead of it. Drink throughout the day, not just right before or during your session. <\/p>\n

If you sweat a lot or train outside, you\u2019ll want to consider a mineral-rich hydration option like coconut water or a homemade mix of water, sea salt, and fruit juice to replenish what you lose. Overall, just listen to your thirst. A good rule of thumb is to check your urine. It should be a pale yellow color \u2014 if it\u2019s dark, you\u2019re dehydrated. <\/p>\n

3. <\/span>Control your workout environment \u2014<\/strong> If you\u2019re exercising in a hot, stuffy room or wearing heavy or dark-colored clothes, you\u2019re setting yourself up for overheating. Switch to natural breathable fabrics and avoid workouts in extreme heat. If you’re indoors, use a fan or open a window. Your brain doesn\u2019t cool itself like your skin, so anything that prevents heat buildup helps protect you.<\/p>\n

4. <\/span>Adjust your workouts at high altitude or during travel \u2014<\/strong> If you\u2019re in the mountains or somewhere with thinner air, your brain is working overtime just to get enough oxygen. It\u2019s easy to push too hard without realizing it. If you\u2019re not used to high elevations, avoid intense training the first few days. Focus on lower-impact options like walking, yoga or light bodyweight exercises while your body adjusts.<\/p>\n<\/div>\n

FAQs About Exercise Headaches<\/h2>\n
\n
\n

Q: Why do I get a headache after working out, even when I drink water?<\/span><\/strong><\/p>\n

A: <\/strong>Exercise headaches aren\u2019t always caused by dehydration alone. Your brain can\u2019t cool down by sweating like the rest of your body, so it sends more blood to your head to regulate temperature. That increases pressure inside your skull, which triggers pain, especially if you ramp up intensity too fast.<\/p>\n<\/div>\n

\n

Q: Are exercise-induced headaches dangerous?<\/span><\/strong><\/p>\n

A: <\/strong>Most of the time, no. They usually fade within a few hours to two days and tend to improve over time as your cardiovascular system adapts. However, if it\u2019s your first headache, or if the pain is sudden and severe, lasts longer than two days or comes with symptoms like nausea, vision changes, or confusion, you should get checked to rule out more serious conditions.<\/p>\n<\/div>\n

\n

Q: Who is most likely to get these headaches?<\/span><\/strong><\/p>\n

A: <\/strong>People who are new to intense workouts, pushing too hard too fast, training in high heat or altitude, or wearing heat-trapping clothes are more likely to experience exercise headaches. Dehydration and poor conditioning are also major contributors.<\/p>\n<\/div>\n

\n

Q: How do I stop these headaches from happening again?<\/span><\/strong><\/p>\n

A: <\/strong>Start with a slow warm-up, stay hydrated throughout the day, train in a cool environment and avoid high-intensity workouts in extreme heat or thin air.<\/p>\n<\/div>\n

\n

Q: What symptoms should I look out for?<\/span><\/strong><\/p>\n

A: <\/strong>Red flags include a thunderclap headache (sudden and extreme pain), fainting, stiff neck, confusion, vomiting or vision issues. If any of these show up, or if the headache lasts more than 48 hours, it\u2019s important to get evaluated for more serious conditions like vascular spasms or brain bleeds.<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

A New Series of Health Insights Is on the\u00a0Way<\/p>\n

IMPORTANT<\/p>\n

A New Series of Health Insights Is on the\u00a0Way
\nOur team has been working behind the scenes to prepare new research and practical health strategies for our readers. While we finish preparing what\u2019s coming next, we invite you to explore one of the most-read articles from our library below. See exactly what’s changing \u2192<\/p>\n

It\u2019s common to be perfectly hydrated and still get hit with a brutal headache right after a workout. For some, it starts as a subtle throb on both sides of the head. For others, it’s a sudden pounding that stops them in their tracks. These are known as exercise-induced headaches, which some describe as \u201cthe worst headache of my life.\u201d They affect up to 26% of adults, depending on the study.1<\/p>\n

While exercise headaches don\u2019t always mean something is seriously wrong, they\u2019re also not something to brush off. When your brain sends up a signal like that, it\u2019s worth listening. What\u2019s frustrating is how unpredictable they often feel. You drink water, fuel properly, get enough sleep and still end up sidelined by pain. So, what\u2019s actually going on? <\/p>\n

The answer has less to do with how hydrated you are and more to do with how your body regulates pressure and blood flow under stress. You don\u2019t need to give up your workouts to stop the cycle. You just need to understand what\u2019s driving these headaches in the first place. That\u2019s where the science comes in.<\/p>\n

Exercise Headaches Happen When Your Brain Gets Too Hot<\/p>\n

An article in The Conversation explored why some people develop exertion headaches despite staying hydrated and exercising regularly.2 It examined current theories and findings to help explain what\u2019s actually going on inside your body when these headaches strike.<\/p>\n

\u2022 Exercise headaches affect people differently based on how fit they are \u2014 These headaches are more common in people new to intense workouts or those who ramp up too fast. They usually happen after a physically demanding session. But what\u2019s considered \u201cstrenuous\u201d really depends on your current fitness level, so even moderate effort could trigger them if you\u2019re not yet adapted.<\/p>\n

\u2022 The pain lasts from a few minutes to two full days \u2014 However, they sometimes go away in time. The article notes that some people stop getting these headaches after a few months of consistent training. That\u2019s because your cardiovascular system slowly becomes better at handling physical stress and regulating blood flow to your brain.<\/p>\n

\u2022 A key cause appears to be how your brain handles heat \u2014 Unlike the rest of your body, your brain doesn\u2019t sweat. To cool down, it redirects more blood flow to your head during exercise. This creates higher pressure in your skull, which triggers pain.<\/p>\n

Further, during exercise, your arteries and veins widen to deliver more blood and oxygen to your muscles and organs. The same thing happens in your brain, but in a confined space, this creates extra pressure, especially when you\u2019re already hot or dehydrated. When it\u2019s hot outside, your body sends even more blood to your brain in an attempt to cool it down. This overcompensation results in increased intracranial pressure and worsens the headache.<\/p>\n

\u2022 Dehydration compounds the problem, but isn\u2019t always the main trigger \u2014 While many people assume they\u2019re getting these headaches from not drinking enough water, hydration alone isn\u2019t the whole story. However, dehydration puts extra stress on your cardiovascular system, which could make your brain\u2019s cooling response more aggressive \u2014 and more painful.<\/p>\n

\u2022 Gradual fitness improvements reduce headache risk over time \u2014 People who build up slowly tend to report fewer and milder exercise headaches, likely because their blood vessels become more efficient at dilating and contracting with less pressure buildup.<\/p>\n

Vision Problems and Nausea Are Red Flags You Shouldn\u2019t Ignore<\/p>\n

Although most exercise headaches are harmless, some are tied to dangerous conditions like brain hemorrhages, infections, or elevated brain pressure.3 If you\u2019re experiencing these headaches for the first time, or if they\u2019re sudden and severe, you should get evaluated. The Cleveland Clinic also broke down how exertion headaches differ from typical head pain.4<\/p>\n

\u2022 Some symptoms mimic migraines and need to be taken seriously \u2014 While throbbing pain on both sides of the head is common, the Cleveland Clinic highlights more serious symptoms like vision changes, nausea and vomiting. If you’re seeing blind spots, getting dizzy or feeling sick to your stomach after workouts, that\u2019s not something to push through.<\/p>\n

\u2022 Unlike general tension headaches, exertion headaches often feel like a strong pulsing sensation \u2014 This typically builds quickly during or after physical activity. They also sometimes feel like a thunderclap \u2014 sudden and explosive. These details matter because understanding your symptoms helps you communicate more clearly with your doctor if you need to seek help. Underlying conditions are rare but important to rule out.<\/p>\n

\u2022 If you\u2019ve never had one before, don\u2019t brush it off \u2014 First-time exertion headaches, especially if severe or paired with other neurological symptoms, should be evaluated by a medical professional. Confusion, fainting, extreme drowsiness or a headache that lasts more than two days are all red flags.<\/p>\n

Once you understand what\u2019s triggering your symptoms and get the green light from your doctor, you\u2019ll be more confident about pushing forward with your workouts without worrying about the next headache hitting out of nowhere.<\/p>\n

Why Pushing Too Hard Too Soon Sets You Up for Headaches<\/p>\n

According to Dr. Ashhar Ali, a neurologist at Henry Ford Health, starting a workout program too aggressively runs the risk of causing your brain and body to react negatively.5 If your system isn\u2019t yet conditioned for exertion, the added pressure from overexertion could show up as a headache. The fix is simple but requires patience: start slow and give your body time to adapt.<\/p>\n

\u2022 Dehydration is a major driver of head pain \u2014 While it\u2019s possible to get an exercise headache even if you drink plenty of water, Ali emphasizes the systemic impact of dehydration on your brain. It doesn\u2019t just leave you tired, it alters fluid balance, increases body strain and heightens the chances of blood vessel dilation in your head, triggering that pounding sensation. \u201cHeadaches are another side effect of not drinking enough water,\u201d he warns.6<\/p>\n

\u2022 Heat overload during workouts makes things worse \u2014 Exercising in hot environments, whether outdoors in direct sun or indoors with poor airflow, is another trigger. What\u2019s more, your clothing choice matters. Heavy fabrics, dark colors, or non-breathable materials trap heat and force your body to work harder to cool down. That extra burden increases pressure in the brain, leading to pain.<\/p>\n

\u2022 Altitude training isn\u2019t for everyone, and it\u2019s a problem if you\u2019re not used to it \u2014 Working out at higher elevations, especially while traveling, is a serious headache trigger. The oxygen is thinner at higher altitudes, and your brain has to work harder to compensate.<\/p>\n

For people not acclimated to these conditions, the change in oxygen pressure often results in sharp, exertion-related headaches. Ideally, take a few days to adjust before attempting intense exercise in these conditions.<\/p>\n

\u2022 These headaches are often mistaken for something else \u2014 People frequently misattribute these headaches to stress or muscle tension, when in fact, it\u2019s the training environment and pace that\u2019s to blame. This misdirection leads many to overlook simple fixes like resting, hydrating, staying cool, or adjusting their workout intensity.<\/p>\n

How to Stop Headaches from Derailing Your Workouts<\/p>\n

If you\u2019re dealing with headaches after a strength-training session, or even just an intense walk, it\u2019s not in your head, at least not the way you think. The problem isn\u2019t always hydration or a poor night\u2019s sleep. Often, it\u2019s how your brain responds to overheating, overexertion or sudden pressure changes.<\/p>\n

The good news? You don\u2019t have to live with it, and you don\u2019t have to quit your workouts either. These are direct ways to fix the root of the issue and keep your head clear while you train. Here\u2019s what I recommend if you\u2019re trying to avoid exercise-induced headaches:<\/p>\n

1. Start with a slow warm-up and build intensity over time \u2014 You wouldn\u2019t go from zero to sprint in five seconds, and your brain doesn\u2019t like it either. Give your blood vessels time to adapt by easing into your workout. Start with gentle movements, low weights, or a light walk. If you\u2019ve been sedentary or are just getting back into fitness, your body needs time to relearn how to regulate pressure and blood flow.<\/p>\n

2. Fix your hydration before, during and after training \u2014 If you\u2019re even slightly dehydrated, your body has to work harder to pump blood, especially to your brain. That raises your risk for pain. Don\u2019t just sip water once your headache starts, get ahead of it. Drink throughout the day, not just right before or during your session. <\/p>\n

If you sweat a lot or train outside, you\u2019ll want to consider a mineral-rich hydration option like coconut water or a homemade mix of water, sea salt, and fruit juice to replenish what you lose. Overall, just listen to your thirst. A good rule of thumb is to check your urine. It should be a pale yellow color \u2014 if it\u2019s dark, you\u2019re dehydrated. <\/p>\n

3. Control your workout environment \u2014 If you\u2019re exercising in a hot, stuffy room or wearing heavy or dark-colored clothes, you\u2019re setting yourself up for overheating. Switch to natural breathable fabrics and avoid workouts in extreme heat. If you’re indoors, use a fan or open a window. Your brain doesn\u2019t cool itself like your skin, so anything that prevents heat buildup helps protect you.<\/p>\n

4. Adjust your workouts at high altitude or during travel \u2014 If you\u2019re in the mountains or somewhere with thinner air, your brain is working overtime just to get enough oxygen. It\u2019s easy to push too hard without realizing it. If you\u2019re not used to high elevations, avoid intense training the first few days. Focus on lower-impact options like walking, yoga or light bodyweight exercises while your body adjusts.<\/p>\n

FAQs About Exercise Headaches<\/p>\n

Q: Why do I get a headache after working out, even when I drink water?
\nA: Exercise headaches aren\u2019t always caused by dehydration alone. Your brain can\u2019t cool down by sweating like the rest of your body, so it sends more blood to your head to regulate temperature. That increases pressure inside your skull, which triggers pain, especially if you ramp up intensity too fast.<\/p>\n

Q: Are exercise-induced headaches dangerous?
\nA: Most of the time, no. They usually fade within a few hours to two days and tend to improve over time as your cardiovascular system adapts. However, if it\u2019s your first headache, or if the pain is sudden and severe, lasts longer than two days or comes with symptoms like nausea, vision changes, or confusion, you should get checked to rule out more serious conditions.<\/p>\n

Q: Who is most likely to get these headaches?
\nA: People who are new to intense workouts, pushing too hard too fast, training in high heat or altitude, or wearing heat-trapping clothes are more likely to experience exercise headaches. Dehydration and poor conditioning are also major contributors.<\/p>\n

Q: How do I stop these headaches from happening again?
\nA: Start with a slow warm-up, stay hydrated throughout the day, train in a cool environment and avoid high-intensity workouts in extreme heat or thin air.<\/p>\n

Q: What symptoms should I look out for?
\nA: Red flags include a thunderclap headache (sudden and extreme pain), fainting, stiff neck, confusion, vomiting or vision issues. If any of these show up, or if the headache lasts more than 48 hours, it\u2019s important to get evaluated for more serious conditions like vascular spasms or brain bleeds.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"seo_booster_metabox":"","footnotes":""},"categories":[3562,3892],"tags":[],"class_list":["post-164159","post","type-post","status-publish","format-standard","hentry","category-baptism-confirmation","category-dr-mercola-daily-news"],"yoast_head":"\nWhy You Get Headaches During Exercise Even When You Stay Hydrated - Watchman News<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why You Get Headaches During Exercise Even When You Stay Hydrated - Watchman News\" \/>\n<meta property=\"og:description\" content=\"A New Series of Health Insights Is on the\u00a0Way IMPORTANT A New Series of Health Insights Is on the\u00a0Way Our team has been working behind the scenes to prepare new research and practical health strategies for our readers. While we finish preparing what\u2019s coming next, we invite you to explore one of the most-read articles from our library below. See exactly what's changing \u2192 It\u2019s common to be perfectly hydrated and still get hit with a brutal headache right after a workout. For some, it starts as a subtle throb on both sides of the head. For others, it's a sudden pounding that stops them in their tracks. These are known as exercise-induced headaches, which some describe as \u201cthe worst headache of my life.\u201d They affect up to 26% of adults, depending on the study.1 While exercise headaches don\u2019t always mean something is seriously wrong, they\u2019re also not something to brush off. When your brain sends up a signal like that, it\u2019s worth listening. What\u2019s frustrating is how unpredictable they often feel. You drink water, fuel properly, get enough sleep and still end up sidelined by pain. So, what\u2019s actually going on? The answer has less to do with how hydrated you are and more to do with how your body regulates pressure and blood flow under stress. You don\u2019t need to give up your workouts to stop the cycle. You just need to understand what\u2019s driving these headaches in the first place. That\u2019s where the science comes in. Exercise Headaches Happen When Your Brain Gets Too Hot An article in The Conversation explored why some people develop exertion headaches despite staying hydrated and exercising regularly.2 It examined current theories and findings to help explain what\u2019s actually going on inside your body when these headaches strike. \u2022 Exercise headaches affect people differently based on how fit they are \u2014 These headaches are more common in people new to intense workouts or those who ramp up too fast. They usually happen after a physically demanding session. But what\u2019s considered \u201cstrenuous\u201d really depends on your current fitness level, so even moderate effort could trigger them if you\u2019re not yet adapted. \u2022 The pain lasts from a few minutes to two full days \u2014 However, they sometimes go away in time. The article notes that some people stop getting these headaches after a few months of consistent training. That\u2019s because your cardiovascular system slowly becomes better at handling physical stress and regulating blood flow to your brain. \u2022 A key cause appears to be how your brain handles heat \u2014 Unlike the rest of your body, your brain doesn\u2019t sweat. To cool down, it redirects more blood flow to your head during exercise. This creates higher pressure in your skull, which triggers pain. Further, during exercise, your arteries and veins widen to deliver more blood and oxygen to your muscles and organs. The same thing happens in your brain, but in a confined space, this creates extra pressure, especially when you\u2019re already hot or dehydrated. When it\u2019s hot outside, your body sends even more blood to your brain in an attempt to cool it down. This overcompensation results in increased intracranial pressure and worsens the headache. \u2022 Dehydration compounds the problem, but isn\u2019t always the main trigger \u2014 While many people assume they\u2019re getting these headaches from not drinking enough water, hydration alone isn\u2019t the whole story. However, dehydration puts extra stress on your cardiovascular system, which could make your brain\u2019s cooling response more aggressive \u2014 and more painful. \u2022 Gradual fitness improvements reduce headache risk over time \u2014 People who build up slowly tend to report fewer and milder exercise headaches, likely because their blood vessels become more efficient at dilating and contracting with less pressure buildup. Vision Problems and Nausea Are Red Flags You Shouldn\u2019t Ignore Although most exercise headaches are harmless, some are tied to dangerous conditions like brain hemorrhages, infections, or elevated brain pressure.3 If you\u2019re experiencing these headaches for the first time, or if they\u2019re sudden and severe, you should get evaluated. The Cleveland Clinic also broke down how exertion headaches differ from typical head pain.4 \u2022 Some symptoms mimic migraines and need to be taken seriously \u2014 While throbbing pain on both sides of the head is common, the Cleveland Clinic highlights more serious symptoms like vision changes, nausea and vomiting. If you're seeing blind spots, getting dizzy or feeling sick to your stomach after workouts, that\u2019s not something to push through. \u2022 Unlike general tension headaches, exertion headaches often feel like a strong pulsing sensation \u2014 This typically builds quickly during or after physical activity. They also sometimes feel like a thunderclap \u2014 sudden and explosive. These details matter because understanding your symptoms helps you communicate more clearly with your doctor if you need to seek help. Underlying conditions are rare but important to rule out. \u2022 If you\u2019ve never had one before, don\u2019t brush it off \u2014 First-time exertion headaches, especially if severe or paired with other neurological symptoms, should be evaluated by a medical professional. Confusion, fainting, extreme drowsiness or a headache that lasts more than two days are all red flags. Once you understand what\u2019s triggering your symptoms and get the green light from your doctor, you\u2019ll be more confident about pushing forward with your workouts without worrying about the next headache hitting out of nowhere. Why Pushing Too Hard Too Soon Sets You Up for Headaches According to Dr. Ashhar Ali, a neurologist at Henry Ford Health, starting a workout program too aggressively runs the risk of causing your brain and body to react negatively.5 If your system isn\u2019t yet conditioned for exertion, the added pressure from overexertion could show up as a headache. The fix is simple but requires patience: start slow and give your body time to adapt. \u2022 Dehydration is a major driver of head pain \u2014 While it\u2019s possible to get an exercise headache even if you drink plenty of water, Ali emphasizes the systemic impact of dehydration on your brain. It doesn\u2019t just leave you tired, it alters fluid balance, increases body strain and heightens the chances of blood vessel dilation in your head, triggering that pounding sensation. \u201cHeadaches are another side effect of not drinking enough water,\u201d he warns.6 \u2022 Heat overload during workouts makes things worse \u2014 Exercising in hot environments, whether outdoors in direct sun or indoors with poor airflow, is another trigger. What\u2019s more, your clothing choice matters. Heavy fabrics, dark colors, or non-breathable materials trap heat and force your body to work harder to cool down. That extra burden increases pressure in the brain, leading to pain. \u2022 Altitude training isn\u2019t for everyone, and it\u2019s a problem if you\u2019re not used to it \u2014 Working out at higher elevations, especially while traveling, is a serious headache trigger. The oxygen is thinner at higher altitudes, and your brain has to work harder to compensate. For people not acclimated to these conditions, the change in oxygen pressure often results in sharp, exertion-related headaches. Ideally, take a few days to adjust before attempting intense exercise in these conditions. \u2022 These headaches are often mistaken for something else \u2014 People frequently misattribute these headaches to stress or muscle tension, when in fact, it\u2019s the training environment and pace that\u2019s to blame. This misdirection leads many to overlook simple fixes like resting, hydrating, staying cool, or adjusting their workout intensity. How to Stop Headaches from Derailing Your Workouts If you\u2019re dealing with headaches after a strength-training session, or even just an intense walk, it\u2019s not in your head, at least not the way you think. The problem isn\u2019t always hydration or a poor night\u2019s sleep. Often, it\u2019s how your brain responds to overheating, overexertion or sudden pressure changes. The good news? You don\u2019t have to live with it, and you don\u2019t have to quit your workouts either. These are direct ways to fix the root of the issue and keep your head clear while you train. Here\u2019s what I recommend if you\u2019re trying to avoid exercise-induced headaches: 1. Start with a slow warm-up and build intensity over time \u2014 You wouldn\u2019t go from zero to sprint in five seconds, and your brain doesn\u2019t like it either. Give your blood vessels time to adapt by easing into your workout. Start with gentle movements, low weights, or a light walk. If you\u2019ve been sedentary or are just getting back into fitness, your body needs time to relearn how to regulate pressure and blood flow. 2. Fix your hydration before, during and after training \u2014 If you\u2019re even slightly dehydrated, your body has to work harder to pump blood, especially to your brain. That raises your risk for pain. Don\u2019t just sip water once your headache starts, get ahead of it. Drink throughout the day, not just right before or during your session. If you sweat a lot or train outside, you\u2019ll want to consider a mineral-rich hydration option like coconut water or a homemade mix of water, sea salt, and fruit juice to replenish what you lose. Overall, just listen to your thirst. A good rule of thumb is to check your urine. It should be a pale yellow color \u2014 if it\u2019s dark, you\u2019re dehydrated. 3. Control your workout environment \u2014 If you\u2019re exercising in a hot, stuffy room or wearing heavy or dark-colored clothes, you\u2019re setting yourself up for overheating. Switch to natural breathable fabrics and avoid workouts in extreme heat. If you're indoors, use a fan or open a window. Your brain doesn\u2019t cool itself like your skin, so anything that prevents heat buildup helps protect you. 4. Adjust your workouts at high altitude or during travel \u2014 If you\u2019re in the mountains or somewhere with thinner air, your brain is working overtime just to get enough oxygen. It\u2019s easy to push too hard without realizing it. If you\u2019re not used to high elevations, avoid intense training the first few days. Focus on lower-impact options like walking, yoga or light bodyweight exercises while your body adjusts. FAQs About Exercise Headaches Q: Why do I get a headache after working out, even when I drink water? A: Exercise headaches aren\u2019t always caused by dehydration alone. Your brain can\u2019t cool down by sweating like the rest of your body, so it sends more blood to your head to regulate temperature. That increases pressure inside your skull, which triggers pain, especially if you ramp up intensity too fast. Q: Are exercise-induced headaches dangerous? A: Most of the time, no. They usually fade within a few hours to two days and tend to improve over time as your cardiovascular system adapts. However, if it\u2019s your first headache, or if the pain is sudden and severe, lasts longer than two days or comes with symptoms like nausea, vision changes, or confusion, you should get checked to rule out more serious conditions. Q: Who is most likely to get these headaches? A: People who are new to intense workouts, pushing too hard too fast, training in high heat or altitude, or wearing heat-trapping clothes are more likely to experience exercise headaches. Dehydration and poor conditioning are also major contributors. Q: How do I stop these headaches from happening again? A: Start with a slow warm-up, stay hydrated throughout the day, train in a cool environment and avoid high-intensity workouts in extreme heat or thin air. Q: What symptoms should I look out for? A: Red flags include a thunderclap headache (sudden and extreme pain), fainting, stiff neck, confusion, vomiting or vision issues. If any of these show up, or if the headache lasts more than 48 hours, it\u2019s important to get evaluated for more serious conditions like vascular spasms or brain bleeds.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx\" \/>\n<meta property=\"og:site_name\" content=\"Watchman News\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-09T00:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-09T05:20:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/media.mercola.com\/assets\/images\/mercola\/bestarticles-icon.png\" \/>\n<meta name=\"author\" content=\"Admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx#article\",\"isPartOf\":{\"@id\":\"https:\/\/watchman.news\/2026\/05\/why-you-get-headaches-during-exercise-even-when-you-stay-hydrated\/\"},\"author\":{\"name\":\"Admin\",\"@id\":\"https:\/\/watchman.news\/#\/schema\/person\/3f4506c6002f5893ba45478a4540739f\"},\"headline\":\"Why You Get Headaches During Exercise Even When You Stay Hydrated\",\"datePublished\":\"2026-05-09T00:00:00+00:00\",\"dateModified\":\"2026-05-09T05:20:16+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/watchman.news\/2026\/05\/why-you-get-headaches-during-exercise-even-when-you-stay-hydrated\/\"},\"wordCount\":1994,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx#primaryimage\"},\"thumbnailUrl\":\"https:\/\/media.mercola.com\/assets\/images\/mercola\/bestarticles-icon.png\",\"articleSection\":[\"Baptism & Confirmation\",\"Dr Mercola Daily News\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/watchman.news\/2026\/05\/why-you-get-headaches-during-exercise-even-when-you-stay-hydrated\/\",\"url\":\"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx\",\"name\":\"Why You Get Headaches During Exercise Even When You Stay Hydrated - 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While we finish preparing what\u2019s coming next, we invite you to explore one of the most-read articles from our library below. See exactly what's changing \u2192 It\u2019s common to be perfectly hydrated and still get hit with a brutal headache right after a workout. For some, it starts as a subtle throb on both sides of the head. For others, it's a sudden pounding that stops them in their tracks. These are known as exercise-induced headaches, which some describe as \u201cthe worst headache of my life.\u201d They affect up to 26% of adults, depending on the study.1 While exercise headaches don\u2019t always mean something is seriously wrong, they\u2019re also not something to brush off. When your brain sends up a signal like that, it\u2019s worth listening. What\u2019s frustrating is how unpredictable they often feel. You drink water, fuel properly, get enough sleep and still end up sidelined by pain. So, what\u2019s actually going on? The answer has less to do with how hydrated you are and more to do with how your body regulates pressure and blood flow under stress. You don\u2019t need to give up your workouts to stop the cycle. You just need to understand what\u2019s driving these headaches in the first place. That\u2019s where the science comes in. Exercise Headaches Happen When Your Brain Gets Too Hot An article in The Conversation explored why some people develop exertion headaches despite staying hydrated and exercising regularly.2 It examined current theories and findings to help explain what\u2019s actually going on inside your body when these headaches strike. \u2022 Exercise headaches affect people differently based on how fit they are \u2014 These headaches are more common in people new to intense workouts or those who ramp up too fast. They usually happen after a physically demanding session. But what\u2019s considered \u201cstrenuous\u201d really depends on your current fitness level, so even moderate effort could trigger them if you\u2019re not yet adapted. \u2022 The pain lasts from a few minutes to two full days \u2014 However, they sometimes go away in time. The article notes that some people stop getting these headaches after a few months of consistent training. That\u2019s because your cardiovascular system slowly becomes better at handling physical stress and regulating blood flow to your brain. \u2022 A key cause appears to be how your brain handles heat \u2014 Unlike the rest of your body, your brain doesn\u2019t sweat. To cool down, it redirects more blood flow to your head during exercise. This creates higher pressure in your skull, which triggers pain. Further, during exercise, your arteries and veins widen to deliver more blood and oxygen to your muscles and organs. The same thing happens in your brain, but in a confined space, this creates extra pressure, especially when you\u2019re already hot or dehydrated. When it\u2019s hot outside, your body sends even more blood to your brain in an attempt to cool it down. This overcompensation results in increased intracranial pressure and worsens the headache. \u2022 Dehydration compounds the problem, but isn\u2019t always the main trigger \u2014 While many people assume they\u2019re getting these headaches from not drinking enough water, hydration alone isn\u2019t the whole story. However, dehydration puts extra stress on your cardiovascular system, which could make your brain\u2019s cooling response more aggressive \u2014 and more painful. \u2022 Gradual fitness improvements reduce headache risk over time \u2014 People who build up slowly tend to report fewer and milder exercise headaches, likely because their blood vessels become more efficient at dilating and contracting with less pressure buildup. Vision Problems and Nausea Are Red Flags You Shouldn\u2019t Ignore Although most exercise headaches are harmless, some are tied to dangerous conditions like brain hemorrhages, infections, or elevated brain pressure.3 If you\u2019re experiencing these headaches for the first time, or if they\u2019re sudden and severe, you should get evaluated. The Cleveland Clinic also broke down how exertion headaches differ from typical head pain.4 \u2022 Some symptoms mimic migraines and need to be taken seriously \u2014 While throbbing pain on both sides of the head is common, the Cleveland Clinic highlights more serious symptoms like vision changes, nausea and vomiting. If you're seeing blind spots, getting dizzy or feeling sick to your stomach after workouts, that\u2019s not something to push through. \u2022 Unlike general tension headaches, exertion headaches often feel like a strong pulsing sensation \u2014 This typically builds quickly during or after physical activity. They also sometimes feel like a thunderclap \u2014 sudden and explosive. These details matter because understanding your symptoms helps you communicate more clearly with your doctor if you need to seek help. Underlying conditions are rare but important to rule out. \u2022 If you\u2019ve never had one before, don\u2019t brush it off \u2014 First-time exertion headaches, especially if severe or paired with other neurological symptoms, should be evaluated by a medical professional. Confusion, fainting, extreme drowsiness or a headache that lasts more than two days are all red flags. Once you understand what\u2019s triggering your symptoms and get the green light from your doctor, you\u2019ll be more confident about pushing forward with your workouts without worrying about the next headache hitting out of nowhere. Why Pushing Too Hard Too Soon Sets You Up for Headaches According to Dr. Ashhar Ali, a neurologist at Henry Ford Health, starting a workout program too aggressively runs the risk of causing your brain and body to react negatively.5 If your system isn\u2019t yet conditioned for exertion, the added pressure from overexertion could show up as a headache. The fix is simple but requires patience: start slow and give your body time to adapt. \u2022 Dehydration is a major driver of head pain \u2014 While it\u2019s possible to get an exercise headache even if you drink plenty of water, Ali emphasizes the systemic impact of dehydration on your brain. It doesn\u2019t just leave you tired, it alters fluid balance, increases body strain and heightens the chances of blood vessel dilation in your head, triggering that pounding sensation. \u201cHeadaches are another side effect of not drinking enough water,\u201d he warns.6 \u2022 Heat overload during workouts makes things worse \u2014 Exercising in hot environments, whether outdoors in direct sun or indoors with poor airflow, is another trigger. What\u2019s more, your clothing choice matters. Heavy fabrics, dark colors, or non-breathable materials trap heat and force your body to work harder to cool down. That extra burden increases pressure in the brain, leading to pain. \u2022 Altitude training isn\u2019t for everyone, and it\u2019s a problem if you\u2019re not used to it \u2014 Working out at higher elevations, especially while traveling, is a serious headache trigger. The oxygen is thinner at higher altitudes, and your brain has to work harder to compensate. For people not acclimated to these conditions, the change in oxygen pressure often results in sharp, exertion-related headaches. Ideally, take a few days to adjust before attempting intense exercise in these conditions. \u2022 These headaches are often mistaken for something else \u2014 People frequently misattribute these headaches to stress or muscle tension, when in fact, it\u2019s the training environment and pace that\u2019s to blame. This misdirection leads many to overlook simple fixes like resting, hydrating, staying cool, or adjusting their workout intensity. How to Stop Headaches from Derailing Your Workouts If you\u2019re dealing with headaches after a strength-training session, or even just an intense walk, it\u2019s not in your head, at least not the way you think. The problem isn\u2019t always hydration or a poor night\u2019s sleep. Often, it\u2019s how your brain responds to overheating, overexertion or sudden pressure changes. The good news? You don\u2019t have to live with it, and you don\u2019t have to quit your workouts either. These are direct ways to fix the root of the issue and keep your head clear while you train. Here\u2019s what I recommend if you\u2019re trying to avoid exercise-induced headaches: 1. Start with a slow warm-up and build intensity over time \u2014 You wouldn\u2019t go from zero to sprint in five seconds, and your brain doesn\u2019t like it either. Give your blood vessels time to adapt by easing into your workout. Start with gentle movements, low weights, or a light walk. If you\u2019ve been sedentary or are just getting back into fitness, your body needs time to relearn how to regulate pressure and blood flow. 2. Fix your hydration before, during and after training \u2014 If you\u2019re even slightly dehydrated, your body has to work harder to pump blood, especially to your brain. That raises your risk for pain. Don\u2019t just sip water once your headache starts, get ahead of it. Drink throughout the day, not just right before or during your session. If you sweat a lot or train outside, you\u2019ll want to consider a mineral-rich hydration option like coconut water or a homemade mix of water, sea salt, and fruit juice to replenish what you lose. Overall, just listen to your thirst. A good rule of thumb is to check your urine. It should be a pale yellow color \u2014 if it\u2019s dark, you\u2019re dehydrated. 3. Control your workout environment \u2014 If you\u2019re exercising in a hot, stuffy room or wearing heavy or dark-colored clothes, you\u2019re setting yourself up for overheating. Switch to natural breathable fabrics and avoid workouts in extreme heat. If you're indoors, use a fan or open a window. Your brain doesn\u2019t cool itself like your skin, so anything that prevents heat buildup helps protect you. 4. Adjust your workouts at high altitude or during travel \u2014 If you\u2019re in the mountains or somewhere with thinner air, your brain is working overtime just to get enough oxygen. It\u2019s easy to push too hard without realizing it. If you\u2019re not used to high elevations, avoid intense training the first few days. Focus on lower-impact options like walking, yoga or light bodyweight exercises while your body adjusts. FAQs About Exercise Headaches Q: Why do I get a headache after working out, even when I drink water? A: Exercise headaches aren\u2019t always caused by dehydration alone. Your brain can\u2019t cool down by sweating like the rest of your body, so it sends more blood to your head to regulate temperature. That increases pressure inside your skull, which triggers pain, especially if you ramp up intensity too fast. Q: Are exercise-induced headaches dangerous? A: Most of the time, no. They usually fade within a few hours to two days and tend to improve over time as your cardiovascular system adapts. However, if it\u2019s your first headache, or if the pain is sudden and severe, lasts longer than two days or comes with symptoms like nausea, vision changes, or confusion, you should get checked to rule out more serious conditions. Q: Who is most likely to get these headaches? A: People who are new to intense workouts, pushing too hard too fast, training in high heat or altitude, or wearing heat-trapping clothes are more likely to experience exercise headaches. Dehydration and poor conditioning are also major contributors. Q: How do I stop these headaches from happening again? A: Start with a slow warm-up, stay hydrated throughout the day, train in a cool environment and avoid high-intensity workouts in extreme heat or thin air. Q: What symptoms should I look out for? A: Red flags include a thunderclap headache (sudden and extreme pain), fainting, stiff neck, confusion, vomiting or vision issues. If any of these show up, or if the headache lasts more than 48 hours, it\u2019s important to get evaluated for more serious conditions like vascular spasms or brain bleeds.","og_url":"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx","og_site_name":"Watchman News","article_published_time":"2026-05-09T00:00:00+00:00","article_modified_time":"2026-05-09T05:20:16+00:00","og_image":[{"url":"https:\/\/media.mercola.com\/assets\/images\/mercola\/bestarticles-icon.png","type":"","width":"","height":""}],"author":"Admin","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Admin","Dur\u00e9e de lecture estim\u00e9e":"10 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx#article","isPartOf":{"@id":"https:\/\/watchman.news\/2026\/05\/why-you-get-headaches-during-exercise-even-when-you-stay-hydrated\/"},"author":{"name":"Admin","@id":"https:\/\/watchman.news\/#\/schema\/person\/3f4506c6002f5893ba45478a4540739f"},"headline":"Why You Get Headaches During Exercise Even When You Stay Hydrated","datePublished":"2026-05-09T00:00:00+00:00","dateModified":"2026-05-09T05:20:16+00:00","mainEntityOfPage":{"@id":"https:\/\/watchman.news\/2026\/05\/why-you-get-headaches-during-exercise-even-when-you-stay-hydrated\/"},"wordCount":1994,"commentCount":0,"image":{"@id":"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx#primaryimage"},"thumbnailUrl":"https:\/\/media.mercola.com\/assets\/images\/mercola\/bestarticles-icon.png","articleSection":["Baptism & Confirmation","Dr Mercola Daily News"],"inLanguage":"fr-FR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx#respond"]}]},{"@type":"WebPage","@id":"https:\/\/watchman.news\/2026\/05\/why-you-get-headaches-during-exercise-even-when-you-stay-hydrated\/","url":"https:\/\/articles.mercola.com\/sites\/articles\/archive\/2026\/05\/09\/exercise-induced-headaches.aspx","name":"Why You Get Headaches During Exercise Even When You Stay Hydrated - 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