Finding the sleep 'sweet spot' could help you live longer, study suggests

How long you sleep could be linked to how long you’ll live.

A new study, published in the journal Nature, found that people who slept too little or too long showed signs of "older biology."

Researchers from Columbia University in New York used global biobank data from about 500,000 people who disclosed self-reported sleep duration in a 24-hour period, including naps.

DEEP SLEEP CAN KEEP TWO BIG HEALTH PROBLEMS AT BAY, NEW STUDIES SUGGEST

Reported sleep times were compared with 23 biological aging clocks...