What has puzzled researchers and philosophers for many centuries is the ‘why’ of sleep, along with the ‘how’. We human animals know from experience that we need to sleep, and that the ...

We might be capable of getting our shut-eye in all kinds of places, but nothing beats the sheer variety of sleeping habits in the broader animal kingdom. Animals can sleep on the wing, standing up ...

Among many other things, sleep plays a crucial role in memory consolidation and other brain functions, supporting the immune system and healing after injury or disease, and protecting against heart ...

All animals need sleep. Explore why and how it evolved. Also meet the developer of the AI Suitcase that helps the visually impaired walk more freely. Recent studies have shown that brainless ...

When birds need sleep, they do it on the fly--quite literally. They're able to enter a special kind of half-sleep state that lets them rest midair, which is especially important if you're a ...

Animals need shelter for protection ... Some animals, like bears, hibernate by going to sleep during the winter months when it is cold and food is hard to find. Seagulls have special glands ...

Most animals close their eyes when they sleep. But did you know some amazing ... particularly when they need to stay alert in their environment. Birds have a special muscle that allows them ...

When researchers engineered mice with this mutation, the animals slept less and moved ... can I train myself to need less sleep? Probably not, is the short answer. The quantity of sleep you ...

The effects of sleep deprivation on cognitive function may be reversed by treatment with a compound called orexin-A, which occurs naturally in the mammalian brain. The new research was done with ...