Fighting Back • 2021 • episode "S1E3" • Royal Institution Christmas Lectures - Going Viral

58:47

Of all the wonders of the human body, there's one more mysterious than any other. Blood: five precious litres that keep us alive. Yet how much do we really know about this sticky red substance and its mysterious, life-giving force?

Health

12:25

In the early days of the space race, agency researchers in Russia and at NASA really weren't sure all what would happen to an astronaut in space. They didn't know if a human mind could handle actually seeing Earth or what would happen to the human body when exposed to long periods of weightlessness. Would their blood forget which way to pump? Would their eyeballs shift or their inner ears wig out? They sent up mice and monkeys and dogs, to see what happened, and in 1961, the Russians strapped a man to a rocket headed for orbit. Yuri Gagarin was the first person in space. The ultimate human guinea pig, he survived, becoming an international hero.

SciShow • 2014 • Health

58:52

This week, we meet a girl whose heart has formed outside her ribcage, a man who can spend nine minutes underwater without taking a breath, a woman who is growing a second skeleton and a paralysed man who is regaining movement thanks to a chip implanted into his brain that can 'read' his brain signals.

1/6 • Incredible Medicine: Dr Weston's Casebook • 2017 • Health

8:21

Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here’s a look at how sleep works, why we’re not getting enough sleep, what happens if you DON’T sleep, and an idea about where sleep came from in the first place.

It's Okay To Be Smart • 2015 • Health

45:02

Growing distrust in GMOs, pharmaceuticals and non-natural solutions has pushed families to seek more 'natural' approaches to medical issues - sometimes with fatal consequences.

5/6 • A User's Guide to Cheating Death • 2017 • Health

4:03

SciShow debunks the myth that you only use 10 percent of your brain. So, how much do you really use? And how do we know?

Health