Ever wondered why you sometimes have conversations in your sleep? These are the three leading explanations, according to ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Most of us treat sleep like it’s a simple budget item: we ...

With this wider view, Samson builds a complex argument about human sleep. He argues it’s a big part of what makes us human.

A recent study suggests that zebrafish have four sleep substates, just like humans do—and one of them is akin to an afternoon ...

A night without sleep produced increased markers of connections between brain cells, showing that sleep in humans may be ...

Add Yahoo as a preferred source to see more of our stories on Google. Author David Samson has climbed trees to study chimpanzee nests in his quest to understand how human sleep evolved. - Bill McGrew ...

In February, a pop-up science column, Annals of Inquiry, is appearing in place of Kyle Chayka’s column, Infinite Scroll. Chayka will return in March. When Joanne Osmond was growing up, in rural ...

NASHVILLE, Tenn. (WSMV) - It turns out sleeping isn’t just about resting your eyes, as a new study found that even ancient creatures without eyes — or even brains — need it too. A study published in ...

A new study analyzed the sleep patterns of jellyfish and sea anemones and found they share some sleep traits with humans. The research could provide insight into the origins and function of sleep.

Add Yahoo as a preferred source to see more of our stories on Google. A painting of a woman waking up. The wild thing about Ekirch’s study was that the evidence of biphasic sleep was staring us in the ...