HOUSTON — A good night’s sleep is important for both the body and brain. It’s essential to understand the four stages of ...

People on TikTok and other social media say they feel more alert when they have had fewer hours of sleep—but sleep scientists ...

Not getting enough of the deeper stages of sleep raises the risk of brain deterioration associated with Alzheimer’s disease, ...

For more on the nature of sleep, go here.] Scientists believe that dreaming plays a role in the consolidation of memories, ...

A study published in the Journal of Clinical Sleep Medicine explores the association between sleep architecture and brain atrophy in regions vulnerable to | Neuroscience ...

Sleep deficiency is associated with atrophy of the inferior parietal region of the brain, according to a study published online.

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

Oxygen re-saturation during sleep is significantly affected by sleep stage and by cardiovascular and pulmonary comorbidities.

The inferior parietal region of the brain, which is known to experience early structural alterations in Alzheimer's disease, had smaller volumes among those who spent less time in ...

New research reveals that lower proportions of specific sleep stages are associated with reduced brain volume in regions vulnerable to the development of Alzheimer's disease over time.

Your sleep cycles change as you age Sometimes, it’s not really your bladder waking you up — you’re waking up anyway. As we age, we spend less time in non-deep rapid eye movement, or nREM ...