Here's Exactly How Many Nights of Bad Sleep You Can Get Before Raising Your Alzheimer's Risk

Just about every professional--myself included--has lost sleep for work at some point. But as the number of people with Alzheimer's disease has climbed, scientists have grown increasingly suspicious that sleep deprivation plays a role in the development of the condition. But how many nights can you go before the creases in your pillow spell out brain trouble?

Apparently, just one.