This research offers new insight into why preserving specific sleep phases could be one of the most accessible ways to maintain cognitive health as we age. With Alzheimer’s disease affecting ...

Share on Pinterest Scientists have found a link between sleep phases, changes in the brain, and Alzheimer’s risk. pocketlight/Getty Images Earlier studies have identified a relationship between ...

and time spent in each sleep phase. ZDNET has thoroughly tested sleep trackers to find the best options based on features, affordability, and availability. Whether you're in the market for a sleep ...

Healthy sleep includes multiple components, such as number of hours of sleep per night, how long it takes to fall asleep, daytime functioning and self-reported sleep satisfaction, and addressing these ...