It takes a lot of energy to stay awake. Good quality deep sleep strengthens your memories and your immune system. And research shows it may help clear out toxins from your brain. Experts don’t fully ...

You’ve heard of REM sleep but what about deep sleep? Experts share why it’s important and how to make sure you’re getting enough of it.

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 ...

Sleep happens in cycles that include three non-rapid eye movement (NREM) stages and one rapid eye movement (REM) stage, repeated 4 to 5 times nightly. Each cycle typically lasts 90 to 110 minutes. The ...

During deep sleep, you pay less attention to the outside world. But while you may be out like a light, some parts of your body are hard at work. Your breathing and heart rate go down, but your ability ...

Unlock peak brain performance with simple sleep adjustments. Dr Vass, a longevity doctor, reveals how optimizing your sleep environment and habits can enhance brain function. Cooling your room, using ...

A deep, undisturbed sleep should be the norm, but modern lifestyle is taking a toll on the sleep cycle. Research says that maintaining a consistent sleep schedule is responsible for proper heart and ...

Deep sleep is one of the most essential stages of the sleep cycle, playing a vital role in how well you feel both physically and mentally. Often referred to as slow-wave sleep or delta sleep, this ...