HEADACHE FROM CAFFEINE

Posted by admin on May 15, 2009 under General health | Be the First to Comment

Coffee, tea and some cola drinks contain caffeine.

This is a stimulant and is responsible for the lift most people experience after drinking these beverages, but too many cups may make you tense and irritable and keep you awake if you drink them late at night.

Caffeine tends to constrict the blood vessels and, when the effect wears off, a rebound dilation of the scalp arteries may cause a throbbing headache. Many of the combination analgesic tablets and powders also contain caffeine and can relieve the headache by causing further arterial constriction.

But, when this wears off, headaches may recur.

Analgesic abuse is often related to the regular taking of analgesic tablets and powders for the “lift” experienced, then a rebound headache provides the justification for taking more analgesics.

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