Those high-functioning people who survive on four hours of sleep per day? Successful though they may be, they’re not doing their hearts any good. A lack of seven to eight hours of sleep causes the body stress, leading to conditions ideal for the development of a heart condition.
“People who routinely get four, five, six hours of sleep, have disproportionate incidents of diabetes, hypertension and obesity,” says Dr. Franklin. “We also have evidence that sleep deprivation can lead to low grade infections and inflammation.”