Spectrum: Why do we work out? | Science| In-depth reporting on science and technology | DW | 16.04.2019
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Spectrum: Why do we work out?

On 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.

Listen to audio 29:59