When most bodies get hot, sweat starts pouring out. Why? In this episode, we'll hop in the Amazing Truck of Minimization (ATOM) to see how sweat glands work from the inside out, take a peek back in time to figure out how we evolved to be so sweaty, and we'll find out if there are any other animals as sweaty as we are. All that plus a brand new mystery sound! This episode was sponsored by: <ul><li>Indeed (<a href="http://indeed.com/BRAINS" class="c-link">Indeed.com/BRAINS</a> - For a $100 sponsored job credit Terms and conditions apply. Offer good for a limited time.)</li><li>Shopify (<a href="http://shopify.com/brainson" class="c-link">Shopify.com/brainson</a> - for a free 14-day trial and full access to Shopify's entire suite of features)</li><li>Outschool (<a href="http://outschool.com/brains" class="c-link">Outschool.com/brains</a> - save $15 on your child's first class)</li><li>Bombas (<a href="http://bombas.com/brainson" class="c-link">Bombas.com/brainson</a> - get 20% off your first purchase)</li></ul>

Flush! Where does our poo and pee go?

Brains On!® is a science podcast for curious kids and adults from American Public Media. Each week, a different kid co-host joins Molly Bloom to find answers to fascinating questions about the world sent in by listeners. Like, do dogs know they’re dogs? Or, why do feet stink? Plus, we have mystery sounds for you to guess, songs for you to dance to, and lots of facts -- all checked by experts.