Lead author Kenneth J. Mukamal, M.D., an associate professor of medicine at Harvard Medical School, suggests the body may try to cool itself by sending more blood to the skin, depriving the brain of oxygen.
Head off trouble: You can't change the weather, but you can take steps to keep cool.
Stay in an air-conditioned environment on hot days, and keep well-hydrated when outdoors or exercising.
2. Put down the pills.
Strange as it may sound, overusing pain medication can actually cause headaches.
When taken too frequently, prescription narcotics or medicines containing caffeine and antihistamines can interfere with the brain's pain-regulation system.
That lowers your pain threshold and makes your headache feel worse, says Brian Grosberg, M.D., program director of the headache fellowship program at Montefiore Headache Center in the Bronx, N.Y.
Head off trouble: Limit pain meds to two days a week, and never take more than the label allows.
If you need them more frequently, see your doctor to find out why.
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