Health claim
“Getting 7‑9 hours of sleep per night is associated with a longer lifespan.”
Claim checked — strong evidenceLow risklongevity
Evidence Summary
Multiple well-designed studies consistently support this claim.
Large epidemiological studies consistently show a U‑shaped relationship between sleep duration and mortality, with 7‑9 hours linked to the lowest risk.
Extracted from
SLEEP EXPERT Reveals How To Optimize Your Sleep To LIVE LONGER! | Matt WalkerDr Rangan Chatterjee
Matt Walker, a leading sleep researcher, discusses evidence‑based strategies to improve sleep quality and duration, linking better sleep to longer, healthier lives.
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