Animals have evolved to sleep in extreme ways — for example, taking micro naps during parenting, sleeping on the wing during ...

In jellyfish and sea anemones, neurons accumulate DNA damage while animals are awake and repair that damage during sleep.

Some animals can sleep with just half their brain at a time. Understanding this phenomenon can help us learn more about human ...

A groundbreaking new study from Bar-Ilan University shows that one of sleep's core functions originated hundreds of millions ...

Coffee grounds and bleach aren’t normal midnight snacks, but people with sleep-related eating disorder have consumed them and other dangerous items without being aware. “I would wake up with these ...

As anybody who's cuddled up to a slumbering cat or dog can tell you, pets have a profoundly relaxing, restful effect on our ...

Despite decades of research, scientists admit that they still have a lot to learn about sleep. In general, sleep can be defined as a period of reduced activity that is relatively easy to reverse.

Ever wondered how some animals manage to survive without the luxury of a good night's rest while we humans desperately need our eight hours? The animal kingdom is packed with creatures that seem to ...

Almost four years ago, I wrote an essay called "Do Wild Animals Suffer From PTSD and Other Psychological Disorders?" in which I summarized much of what we knew then about PTSD and other psychological ...

People for the Ethical Treatment of Animals (PETA) has reached out not only to the National Institutes of Health (NIH) with a plea, but to Florida Gov. Ron DeSantis as well, asking him to help stop a ...