How do Muscles make you strong?

How do your Muscles work? Where do you have the most muscles? How do muscles get stronger?  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  Get official Who Smarted? Merch: tee-shirts, mugs, hoodies and more, at Who Smarted? For more information about our other projects, including bespoke branded podcasts and series for your company, check out  Atomic Entertainment.