Optimal Sleep Window Linked to Slower Biological Aging Across Organs
TL;DR Summary
A large study of about 500,000 UK Biobank participants using organ-specific aging clocks and machine-learning analysis found a U-shaped association between sleep duration and biological aging: both short (<6 hours) and long (>8 hours) sleep correlated with faster aging across organs such as the brain, heart, lungs, and immune system, while 6.4–7.8 hours per night was associated with healthier aging patterns. The work links sleep patterns to mental health and a range of diseases but does not establish causality; it suggests sleep duration is a modifiable factor in a coordinated brain–body aging process.
- Too Much Sleep May Age Your Body Faster, New Study Warns SciTechDaily
- Sleep chart of biological ageing clocks in middle and late life Nature
- Too Little Sleep—and Too Much—Associated with Faster Aging cuimc.columbia.edu
- One Critical Factor Predicts Longevity Better Than Diet or Exercise, Study Finds ScienceAlert
- Scientists reveal the sweet spot for sleep, if you get less — or more — you’re aging yourself faster New York Post
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