The quickest and easiest way to relieve a caffeine-withdrawal headache is to consume caffeine. People who consume caffeine regularly tend to develop more of these adenosine receptors, making them more likely to develop a headache when they stop drinking caffeine. Blocking these receptors can potentially decrease the spread of pain in the head. This reaction is significant because blood vessels tend to enlarge before the onset of certain types of headache.Ĭaffeine also blocks adenosine receptors in the brain, which are pain modulators. With regular caffeine consumption, blood vessels become familiar with this constriction.Ĭaffeine reductions can trigger a rebound effect, causing blood vessels to widen. This is because caffeine has a vasoconstrictive effect, meaning it narrows blood vessels and reduces blood flow. One analysis reported that 50% of people experience a throbbing, widespread headache during caffeine withdrawal.

However, caffeine may cause or contribute to headaches in a number of ways. potentially help treat some types of cancer when in compounds derived from caffeine.It belongs to the methylxanthine class of stimulants that act on the central nervous system. Share on Pinterest springtime78/Getty ImagesĬaffeine is one of the most popular psychoactive drugs in the world, present in many drinks and foods.

Caffeine withdrawal symptoms one month