Sleep

Sleep allows the body to replenish its immune cells, which are responsible for fighting off germs and other things that can make you sick.

Here’s what you should know about why you dream, when you dream, and why you remember your dreams — or why you don’t. The good news: Our ability to recall dreams likely isn’t linked to the quality of our slumber, experts say.

Before we turn the clocks ahead this spring, here’s what you can do to make the transition easier on your sleep, wake-up, and eating schedules.

Hypersomnia or excessive daytime sleepiness can be a sign of a bigger underlying health issue. Here’s what to look for and what could be causing it.

Sound machines create white noise, sounds that help drown out other bothersome noise but don’t keep you awake. Sleep doctors say for some individuals this can help a lot with sleep.

Experts caution there are some real risks when it comes to this viral sleep hack. They say definitely talk to your doctor before trying it.

Sleep doctors recommend these items that friends and family will love, and that can actually help when it comes to catching those z's.

Daylight Savings Time ends Sunday, November 6 this year. Here’s what sleep doctors want you to know about how to help your body adjust to the shorter days.

Chronic lack of sleep may set the stage for disease and even early death.

Valerian has been touted as a sleep aid for centuries, but studies on its effectiveness cast some doubt.

Staying up late at night and sleeping in later in the morning may make people more likely to develop certain chronic diseases, a new study suggests.

Sex can lead to the production of two hormones linked to drowsiness and sleep. Plus, the feelings of closeness that come with intimacy have major stress-busting capacity, experts say.

Do Black people and those from other minority groups get worse sleep than white people? The research says yes. Here’s what’s being done about it.

Get up and out of bed as soon as that alarm goes off, the doctors say. It tells your body clock it’s time to start the day.

Circadian rhythms are the natural changes that happen over the course of a day in the body. Internal body clocks keep these rhythms on track to help you sleep, digest food, stay energized, and prevent obesity, heart disease, and some cancers.

How does the body respond to not sleeping for one or more days? Here are the mental and physical effects you should know about.

Daytime naps, when done correctly, can reduce fatigue and increase alertness. Experts weigh in on the Navy SEAL version.

When the forecast is sweltering, follow these tips to get more shut-eye. Plus: Is sleeping naked a good solution?