Can exercise make us smarter? How can exercise make us happy? Where does the word muscle come from? And what exercise should we do? Find out what exercise actually does to our bodies with Catriona Nguyen-Robertson from Scienceworks who fills in Anika and Dexter on all the excellent facts! This episode of The Fact Detectives is a Kinderling co-production with Scienceworks. To find out more about the world around you, head to museumsvictoria.com.au Guest: Catriona Nguyen-Robertson from Scienceworks Hosts: Anika and Dexter  Production: Cinnamon Nippard  Sound Design: Josh Newth Executive Producer: Lorna Clarkson  And if YOU have a big Fact Detective question, send it to factdetectives@listnr.com.au Hear it first on LiSTNR. Listen ad-free on Kinderling.  See omnystudio.com/listener for privacy information.