当他们入睡时，科学家们将记忆测试中的一半图像所对应的声音播放出来。
While they slept, scientists played the sound cues for half the images presented during the memory test.
这种方法所体现出的“矛盾之处”在于当人们不再努力让自己入睡时，他们反而会更容易入睡。
The paradox being that when people stop trying so hard, they find it easier to fall asleep.
当孩子醒来后，给他们吃东西或是喝饮料，这样会导致孩子做噩梦、睡眠不足10小时或延推迟孩子再次入睡。
Giving children food or drink after they awoke, which provoked bad dreams, sleep of less than 10 hours or delays in falling back asleep.
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