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Caffeine tricks your brain into thinking that you're not tired when in fact you are. Drinking too much caffeine isn't good for you for multiple reasons, and you should cut down on how much you drink if you are getting headaches from it.

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15y ago
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16y ago

Caffine acts to constrict the blood vessel and that reduces the headache. Dialated blood vessels are one of the causes of a headache

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10y ago

Some symptoms of caffeine headaches include reduced energy, fatigue, drowsiness and depression. You can learn more about Caffeine at the Mayo Clinic website.

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Q: How does caffeine cause headaches?
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Related questions

Does drinking coffee cause headaches?

Caffeine can cause headaches when the effects of the drug wear off and you begin to "crash". Additionally, if you are a heavy coffee or soda drinking, quitting all caffeine intake has been known to cause some withdrawls including but not limited to headaches.


What could cause tender breasts and headaches?

Hormone imbalances can definitely cause this, as can too much caffeine.


What impact does caffeine have on headaches?

Caffeine alone can also help relieve headaches.


What to take every day to prevent headaches?

To prevent headaches, don't consume things with caffeine. Caffeine promotes headaches.


Why does coffee cause migraine?

If a person is used to a certain amount of caffeine intake daily, and they suddenly switch to decaf coffee, their body may experience headaches as their body begins to adjust to a lowered intake of caffeine. These are called caffeine withdrawal headaches. These headaches have the dilated blood vessel component that occurs with migraines (because daily caffeine had been constricting your blood vessels and now it isn't), while also carrying with it the muscle pain component of tension headaches, causing pressure to be felt around the shoulders, neck, and scalp.


Does coffee cause headaches?

In some people, coffee can trigger anything from a tension headache to a migraine. In other people, coffee can relieve them. Some people are addicted to caffeine and going without their morning coffee will cause caffeine withdrawal, one of the symptoms of which can be a severe headache. Unfortunately, the only way to stop those withdrawal headaches, also known as rebound headaches, is by getting all the way through withdrawal so that your body becomes accustomed to living without caffeine again.


Where can I find information on diets and their effects on chronic headaches?

Yes, changes to diet can help ease headaches. Certain foods and beverages can cause headaches like caffeine in sodas and coffee or large amounts of sugar. Diets that eliminate or limit these types of food can help to ease headaches.


What are two negative affects of caffeine?

re always awake and shaking i know someone who experianced this!!:)x


How much caffeine does the body need to avoid headaches?

Last time I've checked, caffeine doesn't really help headaches. Caffeine is a drug that basically overall increases heart rate (which makes you hyper). Most headaches are caused by stress and some are from injuries, which increased blood flow doesn't help either of them.


How do you releive headache?

Headaches are usually a symptom of an underlying problem. If you get headaches more than once or twice a week, you may want to do some research on chronic headaches. For occasional headaches, Ibuprofen is sufficient in relieving pain. Follow the guidelines on the package. I wouldn't recommend using a product like Excedrin, which contains caffeine, because the caffeine can actually cause you to have a rebound headache the following day. This is also true for continuing use of OTC pain killers, which is why I have recommended you look into causes of chronic headaches if that is the case with you.


How long after quitting coffee do headaches last?

Caffeine is a drug, and going off any drug will cause withdrawal symptoms that can last hours or weeks. Much depends on how much and for how long the caffeine was being consumed, as well as the physiology of the patient. Going off caffeine at once can be a very painful experience. It is often easier to lower the dosage slowly instead of stopping it immediately. Take care when treating the pain of caffeine withdrawal as many headache medicines contain caffeine as an ingredient.


What over the counter medication for headaches contain caffeine?

Excedrin does. There are others.