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1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick.Got a minute?
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2 .The lunar cycle affects the night sky, the tides and even the fertility of certain marine species.
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3 .And it turns out, we can add your shuteye to the list.
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4 .According to a new study, humans sleep poorly on nights near a full moon.
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5 .The work is published in the journal Current Biology.
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6 .To test the moon's effect, 33 adult volunteers of both sexes and various ages spent several nights in a sleep lab.
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7 .As they dozed, researchers monitored their brain activity, eye movements and hormone levels.
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8 .On nights closer to a full moon, the subjects took an average of five minutes longer to fall asleep, and slept for 20 minutes less.
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9 .In addition, brain activity decreased by 30 percent during the sleep stage that the brain normally uses to recover from its daylight work.
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10 .And levels of melatonin, the hormone that helps regulate sleep cycles, dropped.
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11 .On these nights, the sleepers complained of poor sleep quality even though they were unaware of the lunar cycle.
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12 .On the bright side, not a single participant turned into a werewolf.
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13 .In this cohort.
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14 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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