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

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

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

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

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 ...

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 ...

In the stillness of the night, when the body should lie calm in sleep, something else may be happening beneath the surface.

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 ...