This video unravels why tickling causes laughter and explores the concept of the stomach as a second brain, influencing our emotions. Discover the physiological and neurological responses behind being tickled and how our gut's complex...

Ouch! That hurt! When your baby brother bites your finger, how do you feel it? How do you know whatês hot or whatês cold? How can you tell if something is soft or scratchy or damp? Most of all, how do we feel pain? Weêre talking about...