研究：睡着后大脑也会开启单曲循环

耳虫现象一般发生在白天，但最近科学家发现，睡觉时耳虫也会困扰你的睡眠，在你脑中开启单曲循环模式。

如果你发现某段音乐一直在脑中不断重复，这就是所谓的“耳虫上脑”。耳虫现象一般发生在白天，但最近科学家发现，睡觉时耳虫也会在你脑中开启单曲循环模式，影响睡眠。     We're all familiar with songs getting stuck in our head while we're awake, but it turns out this can happen during sleep as well. A new study investigating the phenomenon indicates that earworms invading our brains at night could cause problems in getting to sleep and staying asleep.