Our floodlit society has made sleep deprivation a lifestyle. But we know more than ever about how we rest—and how it keeps us healthy. Joe Diemand, 76, has spent the past 20 years as a truck ...

Those chart gaps seem to jibe with previous remarks the billionaire has made about his sleep habits in years prior ... in a state of rage-fueled sleep deprivation, and now we're all suffering ...

The long-term effects of sleep deprivation are real. Your central nervous system is the main information highway of your body. Sleep is necessary to keep it functioning properly, but chronic ...