If you get an hour less than a full night's sleep, you carry an hour of sleep debt into the next day - and your tendency to fall asleep during the daytime becomes stronger.
倘若某个晚上少睡一小时，一小时的睡眠债就被带到第二天，白天越来越想睡觉。
After seven to eight weeks of more sleep, the players ran faster in short training RACES. They also felt less sleepy during the day.
经过七到八周充足的睡眠后，球员在短期培训赛跑中跑得更快。在白天他们也不会感到困。
After seven to eight weeks of more sleep, the players ran faster in short training RACES. They also felt less sleepy during the day.
经过七到八周充足的睡眠后，球员在短期培训赛跑中跑得更快。在白天他们也不会感到困。
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