Excessive sleep duration has scientifically defined negative health consequences
the verdict
SUPPORTED
the evidence backs this
confidence 75/100
Multiple studies link excessive sleep duration to adverse health outcomes, including elevated mortality risks.
Evidence for · 2
Sleep Duration and Mortality in Women: Effect of Aging and Menopause.
2026 · cited by 0
Paper [2] highlights a U-shaped link between sleep duration and mortality, noting that both insufficient and excessive sleep are tied to higher death rates.
See more details
More for · 1
Sleep Duration and Long-Term Mortality After Stroke: A Nationwide Analysis
2023 · cited by 0
Paper [9] demonstrates that long sleep duration is independently associated with a higher risk of all-cause mortality after stroke.