Doctors warn that not getting enough sleep could take years off your life — here's how much you need per night

The composite image shows a dark haired woman wearing earbuds yawning out of the window as she sits on a tram on the left, and a dark haired man looking into the distance while lying in bed on the right.

A new study has found that getting an insufficient amount of sleep on a long-term basis is shortening our lives. The study, conducted by Oregon Health & Science University (OHSU), indicates that regular lack of sleep is one of the biggest predictors of decreased life expectancy, more so than other lifestyle factors, including obesity, loneliness and inactivity.

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