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Story summary
- In 2023, a study in the Journal of the American Medical Association (JAMA) found that 77% of U.S. high school students reported insufficient sleep, up from 69% in 2007.
- The rise reflects more students sleeping five hours or less per night, increasing from 16% to 23%.
- Researchers say early school start times contribute to the trend, and adjusting start times could improve teen sleep and mental health.
