We all relish an extra hour of rest on an occasional Saturday morning, but researchers say oversleeping on weekends can be a clue to the extent of the sleep debt you're building up during the workweek. If you sleep more than an hour late on weekends, try to increase the amount of sleep you get during the week.

我们都喜欢在星期六早上赖床，但是研究人员表示，周末赖床可能会增加一周工作日中的睡眠债。如果你在周末多睡一个小时，在这个星期里你就得增加睡眠量。