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 ...

Deep sleep earlier in life could be the key to keeping healthy cognition. The key to keeping your wits about you as you age may lie in shut-eye during midlife. A study found that people over 60 who ...

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 ...

REM stands for Rapid Eye Movement and it’s seen as the deepest stage of the sleep cycle. As the name states, REM sleep is ...

A groundbreaking study conducted at the University of Pennsylvania's Perelman School of Medicine discovered a critical link between stress and disrupted sleep cycles. The study, published in Current ...

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 ...

Sleeping for 7 to 9 hours at night isn't the only way to catch some z's. Here are four alternative sleep cycles -- and they're pretty obscure. Annie Miller Medical Reviewer Annie Miller is a licensed ...

Broadcast Retirement Network's Jeffrey Snyder discusses the impact of poor sleep on your daily mental health and cognition with Brienne Miner, MD, MHS, Yale School of Medicine. This morning on BRN, ...

Have you ever slept for a full eight hours but still felt completely exhausted? You might not be getting enough of the right types of sleep. Today, many people use smart watches or rings to track ...

The general advice for 20- and 30-somethings remains the same: consistent sleep-wake schedules, limiting caffeine, getting ...

Thanks to the Internet, it's the age of self-diagnosis. People like to learn about (and treat) themselves through technology. As a sleep researcher, I was interested in my friends' use of ...

The key to keeping your wits about you as you age may lie in shut-eye during midlife. A study found that people over 60 who didn’t get enough slow-wave sleep — the third stage in the human sleep cycle ...