Dopamine in the brain influences movement, learning, motivation and sleep. In humans, problems with dopamine are linked to ...

Jellyfish sleep around eight hours a night, take short daytime naps, and compensate for lost rest,all without having a brain.

How to: Go to Settings > Display on your Android phone. There, you'll find the option to switch between a light and dark theme and to have dark mode turn on automatically at a certain time of day. I ...

A new study analyzed the sleep patterns of jellyfish and sea anemones and found they share some sleep traits with humans. The ...