When it comes to weight loss, most people focus on the common "calories in vs. calories out" concept. However, this model may ...

Light sleep is the beginning of your sleep cycle and your body's way of winding down. Breathing, heart rate and muscle changes prepare your body for the deeper sleep to come. Light sleep is broken ...

Everything you need to know about REM sleep, including what it is and how much you need ...

In today’s fast-paced world, sleep is often treated as optional—a luxury we squeeze in between work, social life, and endless scrolling on our phones. Yet, ...

Sleep is something we all do every day, yet it’s surprisingly complex and full of mystery. While it may feel like nothing ...

Experts say forcing a 6 a.m. wake-up isn’t healthy for everyone. Your chronotype affects sleep quality, mood and health more ...

After a long day, there's no better feeling than hopping into bed and going to sleep. It’s a time to rest (obviously), but there’s actually a lot that happens in your body while you snooze. Beyond ...

If you use a sleep tracker at night, these are the three metrics you should be paying attention to in the morning.

In the stillness of the night, when the body should lie calm in sleep, something else may be happening beneath the surface. For some people, the dreaming mind turns the body into a stage for sudden ...

(CNN) — Need another reason to prioritize your sleep? Not spending enough time in the two deep stages of sleep — slow-wave and rapid eye movement, or REM, sleep — may hasten the deterioration of parts ...