Your brain on sleep debt
你的大脑睡眠不足
Sleep doctors have long preached the importance of getting a full night's sleep-which, for most adults, is somewhere between seven and nine hours a night. Studies show that when people consistently get less than six, it can negatively affect their health, including their metabolism and their cardiovascular system. Even temporary periods of short sleep can lead to impairments in mood and concentration levels.
睡眠医生长期鼓吹夜间睡眠的重要性--对于大多数成年人而言,也就是每晚睡7至9小时。研究表明当人们持续每晚睡眠低于6小时时,他们的健康会受到负面影响,包括影响新陈代谢和心血管系统。即使只是短暂的缺觉也会导致情绪不好、注意力不集中。
One recent study, for example, found that when people got less than six hours of sleep a night, they had trouble completing basic tasks: They had a fivefold increase in attention lapses and their reaction time nearly doubled, compared with people who slept seven or more hours, even when they didn't feel tired or realize that their performance was suffering.
例如,一项最近的研究发现:与睡眠时间7小时及以上的人相比,当人们一晚睡不到6小时时,他们会很难完成基本任务。注意力不集中的次数增了5倍,反应时间几乎翻了一番,即使他们并没有感到疲劳、或没有意识到自己的效率降低。
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