There are some obvious signs of a poor night’s sleep — fatigue, irritability and trouble focusing, to name a few — but it can also have some hidden effects. In a new study led by University of ...

When you’re short on sleep and your focus suddenly drifts, your brain may be briefly slipping into cleanup mode. Scientists discovered that these attention lapses coincide with waves of fluid washing ...

A machine-learning analysis of brain waves recorded during sleep may help identify people at high risk of developing dementia, according to a study led by UC San Francisco and Beth Israel Deaconess ...

Researchers studied a group of adults to learn more about the connection between sleep quality and brain aging. The scientists used MRI scans to determine each person’s ‘brain age’ and compared that ...