A new study from Columbia University has found that both sleeping too little and sleeping too much are associated with faster biological aging in the brain, heart, lungs, immune system and other organs. The study, published in Nature, utilized machine learning to calculate biological age signatures from structural medical imaging, organ-specific proteins and blood molecules. Researchers analyzed 23 biological aging clocks derived from data on half a million participants in the UK Biobank and identified a sleep “sweet spot” of 6.4 to 7.8 hours per day linked to the lowest levels of aging. According to the report, the findings suggest that…
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