Red light cures acne. Amber light, sleep disorders. And don’t even get us started on violet light—studies suggest that lights on the far end of the visible spectrum may even help treat certain cancers. Welcome to the new, exciting (and occasionally dubious) world of light therapy, where bathing yourself in various hues of visible light can combat disease and forestall the effects of aging.
For years, scientists have argued that, when it comes to managing pain and treating skin conditions, a little light may help. And now a new study in the journal Brain presents strong evidence that a narrow band of green light can make migraines more manageable.