Name: The Ups and Downs of Coffee and Caffeine
Uploaded: 2015-11-03 19:00:00Z
Duration: 3 min 6 s
Channel: VOA Learning English
Description: Recently, researchers British and American researchers investigated caffeine’s effects on human sleep patterns. The scientists found that drinking something caffeinated in the hours just before bedtime can delay sleep sometimes by as long as 40 minutes.

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The Ups and Downs of Coffee and Caffeine

by VOA - Voice of America English News

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The Ups and Downs of Coffee and Caffeine