我们的身体依靠“睡眠信号”来入睡，其中一个信号就是黑暗。

Our bodies depend on 'sleep signals' to fall asleep and one of those signals is darkness.

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如果你早上运动的话，你的大脑会在大白天就接到睡眠信号，从而大大减缓你的节奏。

If you work out in the morning, your brain gets that sleep signal midday and throws off your rhythm.

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因此，懒惰的程序员可能比较喜欢将进程置为不可中断模式的睡眠状态，因为信号不会唤醒这类任务。

So a lazy programmer might prefer putting the process into uninterruptible sleeping mode because signals do not wake up such tasks.

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