Every animal with a brain needs sleep — and even a few without a brain do, too. Humans sleep, birds sleep, whales sleep and even jellyfish sleep.

It is not clear what test he was referring to in his post, and the White House did not immediately return a request for comment. But in 2018, Trump took the Montreal Cognitive Assessment, a 10-minute ...

It starts quietly. A task you used to do without thinking now takes planning, effort, and a little mental bargaining. If ...

Jellyfish and sea anemones are curious creatures: these organisms evolved without a brain and, as scientists discovered only ...

Yet, jellyfish tend to sleep through the night like humans, and even nap around midday. Meanwhile, their close relative, the ...

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.

Birds are aflutter with activity all day long so they certainly need to rest at night – but where do they go? Other than owls ...

From breathing micromotions to AI coaching, discover the science behind top smartwatches and why they often overestimate how ...

Bar-Ilan University study shows that even jellyfish and sea anemones repair DNA during repose, underscoring the fact that a ...

Some supplements work better when you take them at certain times. Learn more about how to maximize the effectiveness of iron, ...