If you're an average sort of person, 36 percent of your life will be spent asleep, which means that if you live to 90, then 32 years will have been spent entirely asleep.
如果你是一个正常人， 那么你生命的36%都将花在睡眠上， 这意味着如果你活到90岁， 那么32年的时间完完全全地都用在了睡眠上。