![]() ![]() However, you're more likely to get a headache from caffeine if you simply drink too much of it too often, because this can lead to dependence. For example, if you increase your caffeine intake, but don't increase how much water you're drinking, caffeine can trigger a headache indirectly by causing you to become more dehydrated. If you suffer from daily headaches, you should avoid caffeine completely - this is also recommended by the National Headache Foundation.ĭrinking lots of caffeine won't help relieve a headache.Anything above that increases your risk of developing more headaches or migraines. If you suffer from episodic migraines - that's up to 14 headaches per month - caffeine can help, but only if you limit it to no more than 200mg a day.In fact, a 2016 study published in the Journal of Headache Pain found that when migraine patients stopped drinking caffeine - after drinking it every day - the medication, called triptans, they were taking for their migraines became more effective.Īccording to the American Migraine Foundation, whether caffeine can help headaches or migraines depends on how often you get them: "There have been many conflicting studies about the link between headaches and caffeine intake," says Amy Stephens, MS, RDN, CDE, a licensed dietitian. The researchers found that over-the-counter pain relief medication containing caffeine works faster and more effectively than pain relief medication alone. In fact, it's a key ingredient in headache medications like Excerdine and Anacin, because it helps you absorb the active ingredients in the medication.įor example, a 2017 review published in The Journal of Headache and Pain studied the results of seven different controlled trials on patients who suffered from migraines or tension-type headaches over a 40-year period. ![]() In this way, caffeine can help stop you from developing migraines in the first place, as well as relieving pain once you already have one.Ĭaffeine can also help relieve headaches by improving the effectiveness of pain relief medication. This means that it constricts vessels and reduces the blood flow to your brain, and as a result, it can help relieve migraine pain.įor example, a 2009 study published in the Human Brain Mapping Journal found that caffeine reduced cerebral blood flow - that's the blood supply to the brain - by an average of 27%. This change in blood flow triggers a number of complicated mechanisms in the brain that can lead to headaches.Ĭaffeine narrows these blood vessels and is known to have "vasoconstrictive" properties. The pain you experience with headaches - specifically migraines - is typically caused by the enlargement of blood vessels around your brain, which increases the amount of blood flow to your brain. ![]()
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