A large new study suggests that too little and too much sleep are linked to faster ageing and several diseases. How much sleep do we really need to avoid fast ageing?
Published on
15/05/2026 - 7:00 GMT+2
Too few or too many hours of sleep may speed up ageing in the brain, heart, lungs, and immune system and be linked to several diseases, according to a new study.
An international group of researchers analysed data collected from nearly half a million participants in the UK Biobank and found a clear pattern.
People who regularly slept for fewer than six hours or more than eight hours tended to show signs of faster ageing across the body.
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