Study Finds 6.4-7.8 Hours of Sleep Optimal as Excess Ties to Faster Organ Aging
Updated
Updated · The Guardian · Jun 1
Study Finds 6.4-7.8 Hours of Sleep Optimal as Excess Ties to Faster Organ Aging
2 articles · Updated · The Guardian · Jun 1
Summary
Nature research using 500,000 UK Biobank volunteers found the healthiest sleep window was 6.4 to 7.8 hours, not the commonly cited eight hours.
Both too little and too much sleep were associated with accelerated organ aging, suggesting risks at either end of the range rather than from sleep deprivation alone.
Women appeared to need slightly more sleep than men, though the study framed the results as guidance rather than a strict target for individuals.
The findings could sharpen advice from sleep trackers and longevity-focused users, even as researchers caution against treating the numbers as prescriptive.