Sunlight makes pleasure chemical in the body

Mice made feel-good chemical after exposure to ultraviolet light — and missed that light when the treatments ended

By Stephen Ornes, 14:56 PM July 7, 2014

The sun’s ultraviolet rays can cause more than a tan or burn. Indeed, their influence goes more than skin deep — to the brain, a new study finds. It showed that exposure to ultraviolet (UV) light causes mice to make a feel-good chemical. And that chemical may explain why so many people feel compelled to get a tan.

The study also may help explain why people flock to beaches and coasts for relaxation, Steven Feldman told Science News. He studies public health and skin diseases at the Wake Forest...

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