Humans began sleeping as a way to partly help reduce DNA damage in nerve cells, scientists at Bar-Ilan University in Israel ...
Sleep is a key determinant in cognitive performance optimization. Here's what you can do to improve the quality of your own ...
It turns out sleeping isn’t just about resting your eyes, as a new study found that even ancient creatures without eyes — or ...
The genre of science fiction has a lot to say about sleep. Here are 11 great stories, from TV, film and books.