Discover what causes sleep talking, whether your nighttime chatter reveals hidden secrets, and how to reduce these nocturnal ...

This is also the stage of sleep when it's most difficult to wake up. Deep sleep is as important as REM when it comes to physical rest, so keep an eye on this stage if you're tracking your sleep ...

Credit: Getty Images There are tell-tale signs when you don’t get enough REM sleep. It’s the fourth stage of sleep and it’s crucial for processing your daily experiences and banking shorter ...

Get the REM sleep you need to process information, emotions, and more. Medically reviewed by Samina Ahmed Jauregui, PsyD Medically reviewed by Samina Ahmed Jauregui, PsyD Although most people are ...

Sleep phase, timing, and alarms all play a role. Sleep occurs in four distinct stages: rapid eye movement (REM) sleep and then three types of non-REM (NREM) sleep which repeat in a cycle ...

(REM sleep is a stage of sleep where your eyes move quickly and you dream, per the Cleveland Clinic. It’s important for learning and memory, too.) Of the participants, 64 had Alzheimer’s ...

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 ...

Maggie O’Neill is a health writer and reporter based in New York who specializes in covering medical research and emerging wellness trends, with a focus on cancer and addiction. Prior to her ...