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.

The renowned health expert and founder of Zoe on giving up running, the very few supplements he recommends, and why he never misses a party ...

Taking omega-3 and vitamin D supplements together may help reduce pain, slow biological aging, improve bone health, and help ...

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

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

Sleep may have evolved to help reduce DNA damage in nerve cells long before they became centralized in the brain, a study ...

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 ...

A research team led by Hiroshima University and Tokyo University of Agriculture and Technology have proposed a neuroendocrine mechanism in bony fish that signals ovulation from the ovaries to the ...

Now that we have wearables tracking our every move, a lot of us can look at stats that supposedly tell us how well we’ve slept the night before. But sometimes, it can feel like your sleep tracker is ...