Only get 2 hours of sleep? Your life expectancy might have just lowered

Doctors recommend getting 7 hours of sleep, and there's a reason for this. Sleep deprivation has been found to actually lower your life expectancy, especially if you get less than 5 hours sleep. In fact, a British study known as the "Whitehall II Study" found that less than 5 hours of sleep can double the risk of cardiovascular diseases, a number one cause of death in the US.