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1. • • Caffeine can trigger a headache. When caffeine is consumed regularly, the body becomes dependent on its effects. And because caffeine narrows the blood vessels that surround the brain, when consumption is stopped, the blood vessels enlarge. This causes an increase in blood flow around the brain and pressures surrounding nerves.
     www.mayoclinichealthsystem.org › hometown-health › speaking-of-health

     Caffeine's effect on headaches - Mayo Clinic Health System

2. People also ask

   What causes a caffeine headache?

   • The number one cause of a caffeine headache is caffeine withdrawal. Even a small decline (30-100mg) in the amount of caffeine a person usually consumes can result in a mild headache. People who miss their daily dose, consume less than their average, or who are detoxing from caffeine will most likely experience this type of headache.

   Anatomy of a Caffeine Headache: Causes, Remedies, Prevention

   www.caffeineinformer.com/caffeine-headache

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   Can caffeine cause migraines?

   • While small doses of caffeine may provide mild relief of head pain, people who consume large quantities of caffeine regularly may be at risk for withdrawal symptoms if they try to quit “cold turkey”—and that withdrawal can itself be a migraine trigger.

   Understanding Caffeine Headache | American Migraine Foundation

   americanmigrainefoundation.org/resource-library/caffeine-headaches/

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   Can caffeine help a headache?

   • The answer is that caffeine can do both. Caffeine can provide relief for a headache. During a headache, blood vessels swell, tighten or go through other changes, causing an increase in blood flow around the brain. This increase blood flow pressures surrounding nerves, which send pain messages to the brain. This brings on the headache.

   Does caffeine treat or trigger headaches? - Mayo Clinic Health System

   www.mayoclinichealthsystem.org/hometown-health/speaking-of-health/does-caffeine-treat-or-trigger-headaches

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   Can coffee cause headaches?

   • Patients with daily headaches should consider avoiding caffeine completely. Daily caffeine intake can also lead to withdrawal headaches. If you rely heavily on acute migraine medications and are concerned about rebound headaches, consider phasing out your coffee habit first.

   Understanding Caffeine Headache | American Migraine Foundation

   americanmigrainefoundation.org/resource-library/caffeine-headaches/

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3. en.wikipedia.org › wiki › CaffeineCaffeine - Wikipedia

   en.wikipedia.org › wiki › Caffeine

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   Caffeinism usually combines caffeine dependency with a wide range of unpleasant symptoms including nervousness, irritability, restlessness, insomnia, headaches, and palpitations after caffeine use.

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     Acetylcholine (ACh) is an organic compound that functions in...

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     Xanthine (/ ˈ z æ n θ iː n / or / ˈ z æ n θ aɪ n /, from...

   • Adenosine

     Adenosine (symbol A) is an organic compound that occurs...

   • Caffeine dependence

     Commonly known caffeine withdrawal symptoms include...

   • Migraine

     Caffeine's role as an inhibitor of adenosine may explain its...

4. americanmigrainefoundation.org › resource-libraryUnderstanding Caffeine Headache | American Migraine Foundation

   americanmigrainefoundation.org › resource-library

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   Oct 4, 2023 · Does caffeine affect headaches? Caffeine is a commonly-cited migraine attack trigger, along with alcohol, artificial sweeteners and MSG. While small doses of caffeine may provide mild relief of head pain, people who consume large quantities of caffeine regularly may be at risk for withdrawal symptoms if they try to quit “cold turkey”—and ...

5. www.healthgrades.com › caffeine-headacheCaffeine Headaches: Causes, Symptoms, Management, and More

   www.healthgrades.com › caffeine-headache

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   Feb 1, 2023 · Medically Reviewed By Madeline Knott, MD. — Written By Rebekah Louise. Updated on February 1, 2023. Caffeine headaches can happen if daily caffeine intake is too high or if regular caffeine consumption is suddenly stopped. Various drinks and foods contain caffeine. It is also in some over-the-counter (OTC) pain relief medications.

   • Author: Rebekah Louise

6. www.mayoclinichealthsystem.org › hometown-healthCaffeine's effect on headaches - Mayo Clinic Health System

   www.mayoclinichealthsystem.org › hometown-health

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   Oct 12, 2020 · Many people ask whether caffeine can treat or trigger a headache. The answer is that caffeine can do both. Caffeine can provide relief for a headache. During a headache, blood vessels swell, tighten or go through other changes, causing an increase in blood flow around the brain.

7. www.caffeineinformer.com › caffeine-headacheAnatomy of a Caffeine Headache: Causes, Remedies, Prevention

   www.caffeineinformer.com › caffeine-headache

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   Mar 2, 2021 · The number one cause of a caffeine headache is caffeine withdrawal. Even a small decline (30-100mg) in the amount of caffeine a person usually consumes can result in a mild headache. People who miss their daily dose, consume less than their average, or who are detoxing from caffeine will most likely experience this type of headache.