为什么上网闲逛能比回封朋友的邮件更能让人恢复活力呢？
Why is Web-surfing more restorative than, say, responding to a friend's email?
睡眠能帮助一切，睡眠可以减慢身体系统的运转，所以我们能恢复活力，为了接下来的工作与玩乐。
Sleep helps, Sleep allows for a slowing down of our body's systems, so we can be re-energized for another days work and play.
睡眠能帮助一切，睡眠可以减慢身体系统的运转，所以我们能恢复活力，为了接下来的工作与玩乐。
Sleep helps, Sleep allows for a slowing down of our body's systems, so we can be re-energized for another days work and play.
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