Bright arctic lights to cause headaches

by Medindia Content Team on  April 20, 2005 at 11:58 AM General Health News
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Bright arctic lights to cause headaches
People suffering from migraines and living in the arctic area may have more attacks of headaches triggered by the bright arctic lights.

Researchers of Norway, who had presented the findings at the American Academy of Neurology 57th Annual Meeting at Miami, said that people reported increased incidence of headaches which have been traced to the increased light and not to any biological rhythms. Such results were happening to people who reported having migraines that begins with an aura or a sensation that signals the beginning of the migraine.

The study also showed that people with such conditions were more affected during summer lights than that of polar winter season. The condition worsens because of light exposure, says the researchers of the study. The condition also makes women, who are more prone to migraine attacks, become extremely sensitive to lights during the period between the attacks.

The reason for such attacks, suggests the study, may lie with the neurons of the occipital lobe of the brain that is the seat of vision. The neurons here becomes hyper excitable for people with migraines and easily triggers the condition.

The lights have not been associated to sleep cycles, sleep patterns etc.

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