To stay healthy, the body needs its zzz’s. But independent of slumber, human health also appears to require plenty of darkness — especially at night. Or so suggests a pair of new cancer studies.
NIGHT LIGHTS AND CANCER This satellite imagery points to regions where nighttime illumination is brightest — and therefore where people are most likely to experience an unnatural suppression of melatonin, a hormone shown to help fight breast and prostate cancers.
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