NATGEO  |  Health

How do a few nights of bad sleep become insomnia?

几晚睡眠不佳如何演变成失眠？

How do a few nights of bad sleep become insomnia?
2026-03-18  1340词  晦涩
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Roughly 30 percent of adults report insomnia symptoms at any given time, and about 10 percent meet criteria for chronic insomnia disorder.

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