High-Octane Caffeine May Trigger Headaches
FRIDAY, Aug. 21 (HealthDay News) -- Caffeine, known to help alleviate headaches, may cause them if consumed in large quantities.
That's the finding of a study of more than 50,483 people who were questioned about caffeine intake and headache frequency as part of the 1995-1997 Nord-Trondelag Health Survey (HUNT 2) in Norway.
The study was published recently in the Journal of Headache Pain.
People who drank large amounts of caffeinated beverages each day had 18 percent more non-migraine headaches than those who drank few caffeinated beverages, according to researchers at the Norwegian University of Science and Technology.
High caffeine consumption was defined as more than 500 mg of caffeine daily, about what's in five cups of coffee. Low caffeine consumption was about 125 mg per day, the study authors noted.
But although there was "no obvious reason," the study also found that low caffeine consumption was associated with greater odds of having chronic headaches (headaches for at least 14 days each month).
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