REM sleep goes even deeper into brain recovery, dreaming and processing memories and emotions. This is the sleep stage in ...

This sleek fitness tracker combines advanced health insights with an even more comfortable fit than its Gen3 predecessor.

A good night’s sleep isn’t just about the number of hours you log. Getting quality sleep — the kind that leaves you feeling ...

How much sleep do you need? Experts break down the real science behind sleep stages, timing, consistency and what happens ...

Let's talk about one of the most confusing terms you’ll see on your fitness tracker—specifically your Apple Watch. Next to REM sleep, which you’ve probably heard of, and “deep” sleep ...

The study, led by UTSA psychology professor Itamar Lerner, involves collaboration with first responders, such as firefighters ...

The Forerunner 265 is the Rolls-Royce of trackers, with its lengthy list ... night), and how long you’ve spent in each sleep stage (light, REM, and deep). Checking out her daily sleep score ...

When in doubt, ask an expert. Dr. Michael Breus, PhD, simplifies and differentiates REM sleep vs. deep sleep for us. REM ...

Even with seven hours of sleep, waking up well-rested is not guaranteed. Sleep trackers and wearables can help determine how you've actually slept throughout the night. Also: I test sleep ...

After tracking my sleep every night for a year ... "While it may help you fall asleep faster, alcohol suppresses REM sleep -- the stage of sleep linked to dreaming, emotional processing, and ...