Take an A student used to scoring in the top 10 percent of virtually anything she does. One study showed that if she gets just under seven hours of sleep on weekdays, and about forty minutes more on weekends, she will begin to score in the bottom 9 percent of non-sleep-deprived individuals. And you don’t fully recover that brainpower as fast as you might think. A 2008 study in Stockholm showed that even after a week of normal sleep people still weren’t 100 percent after just a few five-hour nights.
Hmmm
