The real reason polio is so dangerous
5:44
The diseases that changed humanity forever - Dan Kwartler
5:06
Food expiration dates don’t mean what you think - Carolyn Beans
16:26
Mysterious Deaths Doctors Can't Explain
13:56
The Most Insane Weapon You Never Heard About
5:35
How humanity got hooked on coffee - Jonathan Morris
5:38
What does appendix pain feel like? - David R. Flum
4:47
Why is it so dangerous to step on a rusty nail? - Louise Thwaites
11:58