Everything you need to know about REM sleep, including what it is and how much you need ...

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 ...

REM stands for rapid eye movement — a stage in the sleep cycle when your brain is almost as active as when you’re awake. Getting enough REM sleep is crucial, as it helps you store information and ...

Forger takes a more favorable view toward the devices, which he says help keep the overlooked importance of sleep front of ...

The amount of REM sleep you get may influence which details of your memories remain in storage, a new brain study suggests. The sleep cycle is split into four stages: one stage of rapid eye movement ...

You did it! You finally won the lottery, and you're making plans to spend all that cash ... but then you're startled awake by your alarm clock. It was just a dream (sigh). Whether or not you remember ...

Success isn’t just about strategy and execution — quality sleep fuels energy, decision-making and emotional stability. These six simple sleep habits will help you perform at your best every day.

Alex Honnold's unusually high REM sleep could be the reason why the free-solo climber remains calm in life-threatening heights. Here's what science says.

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 ...