Why does your body make a Scab when you scrape yourself? Are Scabs helpful or harmful? Why should you not pick your scabs?

Grown-Ups:

Be a better you in 2024 with Babbel, the science-backed language-learning app that actually works. Get 55% off at Babbel.com/SMARTED. Rules and restrictions may apply.

Say hello to HelloFresh! Go to HelloFresh.com/smartedfree and use code: smartedfree for FREE breakfast for life! One breakfast item per box while subscription is active. 

Have you started your FREE TRIAL of Who Smarted?+ for AD FREE listening, an EXTRA episode every week & bonus content? Sign up right in the Apple app, or directly at WhoSmarted.com and find out why more than 1,000 families are LOVING their subscription!

Get official Who Smarted? Merch: tee-shirts, mugs, hoodies and more, at Who Smarted?