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 ...

You already know that getting a good night’s rest is essential for good health. However, mouth breathing can interrupt the rapid eye movement (REM) sleep your body needs to function at its best. Like ...

REM stands for rapid eye movement — a stage in the sleep cycle when your brain is almost as active as when you’re awake. Getting enough REM sleep is crucial, as it helps you store information and ...

Stages of sleep explained in clear terms, showing how sleep unfolds through the night and why order, timing, and consistency ...

Waking up at 3 a.m. because one foot slipped out from under the blanket feels oddly dramatic—like your body is sounding an ...

During REM sleep, the body enters a state of paralysis. This can pose a danger for patients with weakened diaphragms due to neuromuscular diseases. Now new research published at the ATS 2025 ...