Like HowStuffWorks on Facebook!

What the Stuff?! Videos

NOW PLAYING (1 of 0)

5 Infectious Facts About Leprosy

Leprosy is a serious health concern in a few populations around the world, but it’s actually very treatable these days, especially if it’s caught early, and it has a low transmission rate. But the true facts about leprosy are still fascinating – some morbidly so. Here are 5 of them.


Most Watched in Shows

Most Watched in Shows
5:33

What the Stuff?!: 4 Strange and Creepy Islands

Most Watched in Shows
6:29

What the Stuff?!: 5 Gross Things That Happen When You Die

Most Watched in Shows
2:47

What the Stuff?!: 5 Weird Lobster Facts

Most Watched in Shows
3:46

What the Stuff?!: 5 Gross Things Inside Your Body Right Now

Most Watched in Shows
4:49

What the Stuff?!: 4 People That Vanished Without A Trace

Most Watched in Shows
5:07

What the Stuff?!: 4 Discoveries Made by the Large Hadron Collider (So Far)

Most Watched in Shows
3:47

What the Stuff?!: 4 Fascinating Facts About Your Farts

Most Watched in Shows
3:41

What the Stuff?!: 4 Threats You Should Never Try to Outrun

Most Watched in Shows
3:25

What the Stuff?!: 4 Awesomely Creepy Christmas Characters

Most Watched in Shows
5:49

What the Stuff?!: 5 Gross Things That Make Cheese Delicious

Most Watched in Shows
5:48

What the Stuff?!: 5 More Worst Ways to Die

Most Watched in Shows
3:30

What the Stuff?!: 4 Offbeat Things Launched Into Space


Recent Videos in Shows

Recent Videos in Shows
5:24

What the Stuff?!: 5 Infectious Facts About Leprosy

Recent Videos in Shows
6:38

What the Stuff?!: 5 Crazy Daredevils

Recent Videos in Shows
5:48

What the Stuff?!: 5 Things You Should Know about Supervolcanoes

Recent Videos in Shows
3:22

What the Stuff?!: 3 Knife Skills

Recent Videos in Shows
4:04

What the Stuff?!: 4 Futuristic Auto Repair Technologies

Recent Videos in Shows
6:47

What the Stuff?!: 5 Reasons Zombies Are Physically Impossible

Recent Videos in Shows
5:16

What the Stuff?!: 5 Gay Parenting Myths

Recent Videos in Shows
6:29

What the Stuff?!: 5 Gross Things That Happen When You Die

Recent Videos in Shows
7:24

What the Stuff?!: 7 Obscene Hand Gestures from Around the World

Recent Videos in Shows
4:40

What the Stuff?!: 4 Ways to Spot a Fake News Story

Recent Videos in Shows
3:27

What the Stuff?!: 4 Misconceptions About the Flu

Recent Videos in Shows
4:18

What the Stuff?!: 5 Ways to Go Off the Grid