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TEJO from scientists at Harvard University studied the effects of coffee consumption on patients suffering from migraines to determine whether caffeine played a role in triggering headaches.
Their study showed that the risk is high with three or more cups of coffee daily.
Migraine is a chronic condition characterized by intense pain in some areas of the skull, including possible nausea, hypersensitivity to noise and / or light, and can last up to 72 hours.
According to the World Health Organization, "Half to three quarters of adults aged 18-65 in the world have had a headache in the last year and, among those people, 30% or more have reported migraine."
While migraines have long been studied, they remain shrouded in mystery, even while many identifying factors have been identified, such as genetic prediction, environmental changes (fatigue, stress, variations in weather), and certain dietary choices.
Researchers at Harvard University conducted a study of 98 adults with episodic migraines to determine if their coffee habit could translate into a trigger for migraines.
"The effect of caffeine depends on dose and frequency, but because there have been few successful studies of the immediate risk of migraine headaches after caffeine drink consumption, there is limited evidence to formulate dietary recommendations for people with migraines," said study director Elizabeth Mostofsky.
Risks increase beyond one or two cups daily
Participants filled out a diary each morning and evening for more than six weeks, noting the frequency and intensity of their headaches, as well as their consumption of coffee, tea or energy drink.
The patients also provided detailed information on other common migraine triggers: medications, alcoholic beverages, level of physical activity, symptoms of depression, psychological stress, sleep patterns, menstrual cycles, etc.
Mostofsky's team used the data to individually compare the incidence of migraines in participants on the days when they consumed caffeine drinks and the days when they were missing.
The study, published in The American Journal of Medicine, has shown that migraine patients who drink three or more cups of coffee daily are more likely to have migraine on the same or next day.
Mostofsky added: "Interestingly, despite some patients with episodic migraines thinking they need to avoid caffeine, we found that drinking one to two servings / day was not associated with a higher risk of headache.
More work is needed to confirm these findings, but it is an important first step. "-AFP
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