Taking longer to fall into REM—the dream stage of sleep—is linked to a higher risk of Alzheimer’s disease, a new study found. REM sleep is essential for learning and memory, and a delay may disrupt ...

Long-term benzodiazepine use in older adults disrupts sleep patterns, leading to lighter sleep and potential cognitive ...

Early on, Nedergaard and Iliff, a glial cell biologist and a vascular physiologist, respectively, hypothesized that waste ...

Waking up mid-dream could be an early warning sign of dementia, a study suggests. People who go into rapid eye movement (REM) sleep - the part of the sleep cycle responsible for dreams and storing ...

Obstructive sleep apnea, a condition that causes lower oxygen levels during sleep, is linked to degeneration of brain regions associated with memory through damage to the brain's small blood vessels, ...

During REM sleep, the body enters a state of paralysis. This can pose a danger for patients with weakened diaphragms due to neuromuscular diseases. Now new research published at the ATS 2025 ...

You can see it coming in right there, that little spot,” says neuroscientist and engineer Laura Lewis. A remarkably bright pulsing dot has appeared on the monitor in front of us. We are watching, in ...

Though often seen as simply being a night owl, there’s actually a strong neurological overlap between ADHD and circadian ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Alzheimer’s disease is a devastating condition that impacts millions of families around the world. But ...

Taking CBD and melatonin together can promote better sleep by reducing anxiety and regulating the body's sleep-wake cycle.

Ever wake up convinced something happened that actually didn’t? That vivid memory of a conversation with your friend, a movie you’re sure you watched, or an event that feels completely real but never ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. Baland Jalal lay in bed terrified ...