Have you ever wondered about what stops a disease from going global? Well pack your bags, because we're taking a world tour to visit seven of the most regional diseases out there, from Guinea worm to an Australian form of rabies, to...

Hank answers a SciShow viewer's most pressing question about what happens if the human body gets exposed to space. Would your head really explode?

What's the difference between a pest and a bug? Shimon Steinberg makes the case for using good bugs to fight bad bugs, avoiding chemicals in our quest for perfect produce.

Have you seen those viral videos of people feeding wild raccoons? The gross reality of it inspired this episode! Jessi goes through the possible diseases that raccoons can carry and how to treat you and your pets if you're exposed.

This video provides an overview of pathogens, which are disease-causing organisms such as viruses, bacteria, fungi, and protists. It explains how these pathogens are transmitted from person to person through water, oral transmission,...