When you get the wind knocked out of you, your normally automatic breathing system is being temporarily interrupted. Learn how phrenospasm works in this episode of BrainStuff, based on this article: https://health.howstuffworks.com/human-body/systems/respiratory/wind-knocked-out.htm

How Does Building Muscle Work?
07:37

Deinonychus: The Dinosaur That Sparked a Renaissance
08:04

How Do Scales Measure Weight?
09:30