With sleep impacting health issues like stress and weight, tracking REM and deep sleep can help you improve your nights.

Deep sleep refers to slow-wave sleep — a stage in the sleep cycle when brain waves slow down. Getting enough deep sleep is crucial for numerous bodily functions. But how to increase deep sleep isn’t ...

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 ...

If you've ever woken up feeling groggy and sluggish even after a full night of rest, you might not be getting enough core sleep. What is core sleep? It's a term that encompasses the most restorative ...

It has been known for nearly 20 years that slow, synchronous electrical waves in the brain during deep sleep support the formation of memories. Why that is was previously unknown. Now, a team of ...

Americans are not getting enough sleep, and it’s starting to take a toll on our health. According to the Centers for Disease Control and Prevention (CDC), adults across the country are sleeping less ...

Insomnia, a common sleep disorder, can make it hard to get some shut-eye. Late-night screen time, jobs, and social events can ...

Forbes contributors publish independent expert analyses and insights. Dr. Judy Stone focuses her writing on infectious diseases. While women are said to sleep a bit longer than men, their sleep ...