Sleep Shapes Longevity More Than Diet or Exercise
- Sleeping fewer than seven hours a night shortens lifespan more than poor diet, lack of exercise, or weak social ties, making sleep one of the strongest predictors of long-term survival
- Short sleep accelerates aging by disrupting cellular repair, hormone balance, and energy production, even in people who eat well and stay physically active
- Most adults are not metabolically resilient enough to function on limited sleep, which means chronic sleep loss quietly compounds damage year after year
- Small, consistent sleep deficits add up over time, increasing vulnerability to disease and reducing your body's ability to recover from stress
- Restoring sleep quality by stabilizing light exposure, circadian timing, and nightly routines gives your body the conditions it needs to repair itself and extend health span
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