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Warmer Weather Triggers Migraines

Jumps in outdoor temperature linked to increased migraine risk

By Rob Quinn,  Newser Staff

Posted Mar 10, 2009 8:19 AM CDT

(Newser) – A new study adds weight to the belief held by many who suffer migraines that weather changes can trigger headaches, Bloomberg reports. Harvard researchers compared weather data against the records of 7000 patients diagnosed with severe headaches and discovered the risk of headaches rose 7.5% for every 9-degree rise in temperature in the preceding days. Lower barometric pressure increased headaches to a lesser extent.

"One of the next steps is to ask if there is medication that can prevent this kind of triggering," said one of the researchers, whose work is published in the journal Neurology.

Migraines cost the US $17 billion every year in medical treatment and lost job productivity, researchers say.
Migraines cost the US $17 billion every year in medical treatment and lost job productivity, researchers say.   (Shutter Stock)
Lower barometric pressure, which indicates changes in humidity as well as temperature, was found to increase the risk of headaches.
Lower barometric pressure, which indicates changes in humidity as well as temperature, was found to increase the risk of headaches.   (©SantaRosa OLD SKOOL)
Researchers have identified warmer outdoor temperatures as the chief weather-related trigger for severe headaches.
Researchers have identified warmer outdoor temperatures as the chief weather-related trigger for severe headaches.   (©longhorndave)
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