For a long time, the American way used to be to work hard, and to even brag about how little sleep you got, but somewhere in the past generation we started to change our minds, reports Newsworks.

Michael Grandner, director of the Sleep & Health Research Program at the University of Arizona, says he has patients with mild sleep problems come to him all the time, worried they have insomnia and asking if they should undergo an in-depth sleep study.

“About a third of the population is reporting about six hours of sleep or less, which has been linked in general to things like a shorter life span, or risk for more things like heart disease and diabetes, obesity and performance deficits, and depression and substance use,” Grander says.