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Your sleep age could predict your mortality, scientists say

“Going to bed and waking up at regular hours is a key to improving your sleep,” says Emmanuel Mignot. Photo: Pexels

(Stanford University/ Futurity) –– Sleep age, a projected age that correlates to your health based on sleep quality, could predict your mortality, scientists say.

For instance, if you analyze the sleep characteristics of dozens of 55-year-olds and average them out, you’ll have an idea of what sleep looks like at that age. For instance, someone who’s 55 and sleeps soundly through the night with good quality REM cycles could, theoretically, have a sleep age of 45.

For a new study in npj Digital Medicine, Emmanuel Mignot, professor in sleep medicine at Stanford University Medicine, and his colleagues analyzed some 12,000 studies, each of which focused on an individual, that reported characteristics of their sleep—such as chin and leg movement, breathing, and heartbeat. Their goal was to develop a system that assigns one’s sleep age and, using machine learning, identify the variations in sleep most closely linked to mortality. (…)