If you’re having trouble drifting off, the culprit could be celestial. Researchers at Switzerland’s University of Basel discovered that during a full moon, sleep-monitored subjects took five minutes longer to nod off; slept for 20 minutes less; and had lower levels of melatonin, a sleep-regulating hormone.
“The lunar cycle seems to influence sleep, even when one isn’t aware of the actual moon phase,” says lead author Christian Cajochen, Ph.D.
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