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

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 ...

If you use a sleep tracker at night, these are the three metrics you should be paying attention to in the morning.

While it is certainly true that rapid eye movement (REM) sleep functions, in part, to promote a healthy waking mind, there are compelling reasons to believe that the opposite is the case as well: the ...

While you might be getting the recommended eight hours of shuteye each night, you may still be missing out on the quality sleep your brain and body need. That can be frustrating, especially if you’re ...

Sleep is a key determinant in cognitive performance optimization. Here's what you can do to improve the quality of your own ...

One study suggests that taking longer to reach the rapid eye movement (REM) stage of sleep is associated with biomarkers of Alzheimer’s disease. The delay in getting to REM might be useful in ...

It’s difficult to know how common sleepwalking is. In 2016, Helen Stallman and Mark Kohler conducted a systematic review of studies on sleepwalking. They explain there are many reasons measuring ...

New research analyzing data from dozens of sleep studies has identified a dramatic change to the nature and purpose of sleep in babies, occurring around the age of two. The discovery suggests sleep ...

Our sleep is marked by cycles of distinct brain activity. The most well-known of these is probably rapid eye movement, or REM sleep, which is characterized by loss of muscle control leading to ...