Sleep patterns among middle school students: a three-year longitudinal study in the context of China's "Double Reduction" policy.

Front Public Health · 2025 · PMC12605037 · PMID 41235191

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an increasing trendno p-value reported

On rest days, daytime sleep duration showed an increasing trend over the 3 years, G8 and G9 are significantly increased than G7 (G7 vs.

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