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Blue Light May Not Be Keeping You Awake After All
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Blue Light May Not Be Keeping You Awake After All

A new study shows that the brightness of light matters more than its color. Reviewed by Gary Drevitch KEY POINTSResearchers exposed healthy subjects to blue, yellow, and white light for an hour before bed.The color of light made no difference to participants’ level of drowsiness or sleep quality.Light-sensitive ganglion cells in the eye, not color-producing...