Medicine: The Darker the Better

The lifeguard who can't be bothered with sunglasses may look handsomer than his begoggled colleagues, but he is not the man to take the wheel during a moonlight drive. And the factory worker who tries to relax while squinting tearfully into the ocean glare may, as a result, have an accident at the work bench more than a week later. The effects of overexposure to bright sunlight last longer than most people realize.*

Dr. Robert H. Peckham, of Philadelphia's Temple University, got on the track of these findings during the war. As a Navy commander, he...

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