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Migraine Triggers Called Into Question by New Study

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[ Science]

A new study has shown that “triggers” for migraine with aura may not be as strongly associated with migraines as is commonly thought. Such triggers, including flashing lights and exercise, are often avoided by patients who suffer frequent migraines.

“People with migraine with aura are told to avoid possible triggers, which may lead them to avoid a wide range of suspected factors,” said Dr. Jes Olesen, author of the study at the University of Copenhagen and a Fellow of the American Academy of Neurology. “Yet the most commonly reported triggers are stress, bright light, emotional influences and physical effort, which can be difficult to avoid and potentially detrimental, if people avoid all physical activity.”

The study, published recently in the journal Neurology, looked at 27 people with migraine with aura who reported that a migraine attack had been triggered by flickering light or vigorous exercise. The patients exercised for one hour, either biking or running, and reached at least 80% of their max heart rate. The were also exposed to flashing lights for 30 to 40 minutes. After their sessions, patients were observed for three hours and told to report any migraine symptoms.

“Our study suggests that if a person is exposed to a suspected trigger for three months and does not have a migraine attack, they no longer have to worry about avoiding that trigger,” said Olesen.

Only 11% of the patients reported a migraine with aura after their trigger exposure, and another 11% experienced a migraine without aura. None of the patients had a migraine with aura following light exposure alone.

“Perhaps rather than triggers, these behaviors are a brain-driven response to the early phases of the migraine itself,” said Dr. Peter Goadsby of the University of California, San Francisco in an accompanying editorial. “Maybe people are driven to exercise as an early symptom and the association with light is simply the sensitivity to light that occurs with the attack itself?”

Migraine Triggers Called Into Question by New Study


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  • Susan

    trust me… as a life long migraine sufferer… when those flashy lights show up.. its gonna be a bad one… you had best get your migraine meds in your body asap and avoid ANYTHING that will possibly make it worse! … as for other Aura’s… I can be having an absolutely beautiful day.. and … then… the smell of Elmers Glue will suddenly be in the air.. only.. I AM THE ONLY ONE WHO CAN SMELL IT… look out… the migraine about to come on.. .will take more than one dose of meds.. guaranteed. I would like to see these SCIENTISTS… try to live with that.. and THEN tell me its not real!

  • pony

    Oh, 27 patients, huh? Sounds like solid stuff. I kinda want to find this doctor and punch him. I’ve had migraines for 18 years. Even with medications ( I take at least 3 everyday, some days up to 7 different medications ) I will never be migraine free. There is NO way I could watch a flashing light for a half an hour. More than 30 seconds and my tremors start. Bold statements, sir. Bold statements indeed.

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