REM sleep is a stage of sleep when your heart rate increases, your blood pressure elevates, and your brain processes emotions ...

Do you often feel anxious, uncertain, afraid? Do you struggle with low confidence? Have you endured serious physical or emotional harm in your past? Do you have unexplained discomfort, including ...

Ever woken up in a cold sweat after a terrifying or twisted dream? You’re not alone. Here’s what science says about why ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Need another reason to prioritize your sleep ...