Add Yahoo as a preferred source to see more of our stories on Google. Biological clock Getty Images/nambitomo Researchers have long wished to understand the connection between sleep and memory, ...

Memory problems affect virtually everyone at some point in their daily lives, yet people often feel embarrassed or worried when they experience these perfectly normal cognitive hiccups. The human ...

The latest study on America's state of mind is in, and it reveals a concerning rise in the share of adults who say they have problems with memory, decision-making, or concentration – known ...

Cognitive struggles are climbing across the U.S., especially among young and economically disadvantaged adults. Rates of self-reported cognitive disability nearly doubled in people under 40 between ...