Tampa Bay physicians are urging night owls to pay attention to a recent study linking poor sleep health to Alzheimer's ...

REM stages and one REM stage. Ideally, you repeatedly cycle through each stage. Learn how long each stage lasts.

While waking up in the night is not usually something to be worried about, if it happens constantly it could signal a more ...

Healthy sleep includes multiple components, such as number of hours of sleep per night, how long it takes to fall asleep, daytime functioning and self-reported sleep satisfaction, and addressing these ...

During REM sleep, breathing becomes faster and blood pressure and heart rate become less regular. People generally cycle through these four phases 4–6 times each night. Previous research has shown ...

Setting multiple alarms can disrupt REM sleep, causing lethargy, mood swings, and higher cortisol levels. Experts advise ...

Sleep quality matters more than quantity. Learn why you might still feel tired despite getting eight hours of sleep and how ...

A combined analysis of recent research indicates that lower satisfaction with sleep is associated with higher blood pressure ... and rapid eye movement (REM), the deepest stage of sleep.

A sleep expert has shed light on why you might be waking up at 3am every night. Although this is a relatively common ...

Research reveals how specific sleep stages protect brain vulnerable to Alzheimer's, offering hope through simple lifestyle changes THAT anyone can implement ...

Some research suggests that a man’s drive tends to decline with age. One study found that the drive of middle-aged men (40–60 ...