What's more, this study found that 92% of those who stopped taking melatonin saw their delayed sleep onset come back.

更重要的是，这项研究发现92%停止服用褪黑激素的人，他们延迟的睡眠得到恢复。

The studies also found that the near-death experiencers had shorter sleep durations and delayed REM sleep when compared to the control group.

研究还发现，与对照组相比，濒死体验者的睡眠时间较短，快速眼动睡眠也延迟。

The habit may turn into a disorder called delayed sleep phase syndrome if it is serious enough to affect a person's study, work and other aspects of life.

如果晚睡晚起的习惯已经非常严重，甚至影响了人的学习、工作和生活的其他方面，就可能会变成睡眠周期延迟症候群。