Alzheimer's disease & dementia

Decreased deep sleep linked to early signs of Alzheimer's disease

Poor sleep is a hallmark of Alzheimer's disease. People with the disease tend to wake up tired, and their nights become even less refreshing as memory loss and other symptoms worsen. But how and why restless nights are linked ...

Health

Catching up on news about catch-up sleep

(HealthDay)—Missing out on needed sleep can bring a host of health woes, including diabetes because a lack of sleep affects insulin levels.

Psychology & Psychiatry

What are the effects of total isolation? An expert explains

Imagine being confined to a small, dark room, with no social interaction whatsoever for 30 days. Not many people would jump at this opportunity. But, in November 2018, a professional US poker player Rich Alati bet US$100,000 ...

Sleep apnea

Age, BMI predict obstructive sleep apnea treatment success

(HealthDay)—Among patients with obstructive sleep apnea, older age and reduced body mass index (BMI) are predictors of upper airway stimulation (UAS) treatment response, according to a study published online Nov. 28 in ...

Neuroscience

The sleeping brain remains attentive to its environment

By exposing sleepers to complex sounds, researchers from the CNRS and ENS Paris1, in collaboration with Monash University (Australia), have just demonstrated that our brain can track the sounds in its environment while we ...

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Sleep

Sleep is a natural state of bodily rest observed in humans and other animals. It is distinguished from quiet wakefulness by a decreased ability to react to stimuli, and it is more easily reversible than hibernation or coma. It is common to all mammals and birds, and is also seen in many reptiles, amphibians, and fish. In humans, other mammals, and a substantial majority of other animals that have been studied (such as some species of fish, birds, ants, and fruit flies), regular sleep is essential for survival.

The purposes and mechanisms of sleep are only partly clear and are the subject of intense research.

This text uses material from Wikipedia, licensed under CC BY-SA