Health ❯ Sleep

Sleep Duration

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New Review Questions the Eight‑Hour Sleep Prescription

A Brain Medicine synthesis published Tuesday argues optimal sleep varies by person and organ, with many estimates below eight hours.

Study Finds About 6.4–7.8 Hours of Sleep Linked to Slowest Organ Aging

Irregular Bedtimes Linked to Double Heart Risk for Short Sleepers, Study Finds

New Data Show Most U.S. Teens Fall Short on Sleep as Very-Short Nights Rise

Study Finds 7 Hours 18 Minutes of Nightly Sleep Linked to Healthier Insulin Marker

Small Daily Tweaks to Sleep, Exercise and Diet Tied to Longer Life in Lancet Analyses

New Studies Tie Minutes More Sleep, Activity and Vegetables to Longer Life

Insufficient Sleep Ranks Just Behind Smoking in Predicting Shorter U.S. Lifespans

Short Sleep Linked to Lower U.S. Life Expectancy in County-Level Study