ScienceWhy do we work out?To play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceGabriel Borrud | Conor Dillon04/16/2019April 16, 2019On this week’s show, we look into the evolutionary origins of working out. And all the while, we speak to beefcake body builders, sports nutritionists and spinners at the world’s biggest fitness trade fair about why they work it so hard.https://p.dw.com/p/3GtjYAdvertisement