Tagged: life

How blood pressure works

If you lined up all the blood vessels in your body, they’d be 60 thousand miles long. And every day, they carry the equivalent of over two thousand gallons of blood to the body’s...

0

Life after death

A trucker in Ohio shocked hospital staff after coming back to life nearly an hour after he lost his pulse following a massive heart attack — but it’s what he claims to have seen...

0

How did life arise on earth?

Earth is estimated to be about 4.5 billion years old, and for much of that history it has been home to life in one weird form or another. Indeed, some scientists think life appeared...