On dry nights, the San hunter-gatherers of Namibia often sleep under the stars. They have no electric lights or new Netflix releases keeping them awake. Yet when they rise in the morning, they haven’t ...

The familiar labels "night owl" and "early bird," long used in sleep research, don't fully capture the diversity of human ...

Add Yahoo as a preferred source to see more of our stories on Google. Biological clock Getty Images/nambitomo Researchers have long wished to understand the connection between sleep and memory, ...

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.

We preselected all newsletters you had before unsubscribing.