Research

Studies: Sleep Patterns Linked to Faster Aging

Is sleep the key to slowing biological aging or do social determinants hold more power over our health?

Published MAY 13

Studies: Sleep Patterns Linked to Faster Aging

Story

Above: A woman sleeping in bed in Berlin on March 19. Image credit: Elisa Schu/picture alliance/Getty Images

The Facts

A Columbia University study published Wednesday in Nature analyzed data from more than 500,000 UK Biobank participants and found that sleeping fewer than six hours or more than eight hours per night was associated with faster biological aging across nearly every organ.
The Telegraph
Columbia University Irving Medical Center
Nature
The Columbia University team built 23 aging clocks across 17 organ systems using proteins, metabolites and medical imaging data. The least aging was observed in people who slept between 6.4 and 7.8 hours per day, though optimal sleep duration varied by organ and by sex.
Columbia University Irving Medical Center
Nature
Short sleep was associated with depressive episodes, anxiety, obesity, type 2 diabetes and heart conditions, while both short and long sleep were linked to respiratory and digestive disorders. Lead researcher Junhao Wen cautioned the relationship between sleep and aging is likely bidirectional.
The Telegraph
Columbia University Irving Medical Center
A separate cross-sectional study of 207 adults from the Baltimore Epidemiologic Catchment Area Study, published in JAMA Network Open last week, found that stronger and more consistent daily rest-activity rhythms were associated with lower biological age scores on the GrimAge and PhenoAge epigenetic clocks.
JAMA Network
Medicalnewstoday
Meanwhile, a study by Mass General Brigham and Rush University Medical Center, drawing on up to 19 years of follow-up data from 1,338 adults, found each additional hour of daytime napping was linked to a roughly 13% higher mortality risk, and morning naps carried a 30% higher risk than early-afternoon napping.
Harvard Gazette
Mass General Brigham
Texas A&M researchers found that circadian rhythm disruption from irregular sleep-wake cycles activated stress-primed microglia in the brain, which may contribute to dementia. Texas A&M Health awarded $1.325 million in grants to support 11 related research projects, including work on extracellular vesicle therapy to reduce brain inflammation.
Medicalnewstoday
EurekAlert!

Sources Split

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The Spin

Narrative A

Sleep duration is a major driver of biological aging across nearly every organ system, with both too little and too much sleep accelerating the body's decline. Research using aging clocks across 17 organ systems found the least aging in people sleeping between 6.4 and 7.8 hours nightly. Disrupted circadian rhythms also trigger brain inflammation linked to Alzheimer's disease, making sleep one of the most powerful levers for long-term health.

EurekAlert!

Columbia University Irving Medical Center

Narrative B

Sleep quality matters far more than duration for older adults — nightly wake time, not total hours, predicts next-day cognitive performance. Meanwhile, social determinants like income and education drive biological aging acceleration more broadly, meaning fixing sleep habits alone won't close the health gap. Addressing the structural conditions people live and work in is the more effective path to slowing aging and preventing disease.

Nature

Penn State Health News