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1 .This is Scientific American 60-Second Health. I'm Katherine Harmon. Got a minute?
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2 .A little booze before bedtime might help you fall asleep faster.
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3 .But various studies show that alcohol is anathema for restorative sleep.
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4 .A new review paper describes just how detrimental a few drinks can be.
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5 .The researchers pored over 20 studies conducted in controlled lab settings.
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6 .They found a clear trend that just about any amount of alcohol alters sleep.
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7 .And the effects are usually bigger with more drinks.
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8 .Just two drinks or more cut REM sleep, which is important for memory and health.
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9 .And those deep, slow-wave sleep periods are also reduced for people who have tied on more than one.
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10 .Perhaps the most potent finding is that just a single dose of alcohol in the late evening can zap the efficacy of your z's.
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11 .The paper is in the journal Alcoholism: Clinical and Experimental Research.
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12 .Disrupted and insufficient sleep has been linked to everything from weight gain to heart problems.
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13 .Not to mention harming memory and well-being.
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14 .It may be time to say goodnight to the nightcap.
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15 .Thanks for the minute, for Scientific American 60-Second Health. I'm Katherine Harmon.
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