Skip to content

Sam's News — diet-exercise — 2026-09-30

Diet & Exercise

7 Sleep Duration Predicts Longevity Stronger Than Diet or Exercise, Study Finds

A study from Oregon Health & Science University analyzing US county-level data from 2019–2025 found that insufficient sleep (less than seven hours per night) has a stronger association with lower life expectancy than diet and exercise. The research, published in Sleep Advances in 2025, suggests adequate sleep is a more significant predictor of long-term health outcomes than previously recognized factors.

  • Researchers analyzed county-level survey data from 2019–2025 across the US
  • Only smoking had a stronger association with life expectancy than insufficient sleep; obesity and diabetes also ranked above it
  • The study defined insufficient sleep as less than seven hours per night
  • American Academy of Sleep Medicine and Sleep Research Society recommend at least seven hours of sleep per night

Sources: ScienceAlert AI Web Searched