Declining brain function is a natural part of the aging process, but that doesn’t mean it can’t be delayed. A new study has ...

Improvement to cognitive performance caused by exercise could last for 24 hours, a new study shows. Scientists also linked getting 6 or more hours of sleep to better memory test scores the next day.

A sleep study, also called polysomnography, is used to diagnose sleep disorders. Find out how the test works and what treatments can help you sleep.