This is an episode of Body Electric a series airing over at the TED Radio Hour. In this special series, host Manoush Zomorodi investigates the relationship between our technology and our bodies and asks: How are we physically adapting to meet the demands of the Information Age? Why do so many of us feel utterly drained after a day spent attached to our devices? Part one kicks off with an exploration into how economic eras have shaped the human body in the past with author Vybarr Cregan-Reid. Then, Columbia University researcher and exercise physiologist Keith Diaz and Manoush discuss his findings and propose a challenge to listeners: Let's see if we can end this cycle of type, tap, collapse together. Click here to find out more about the project: npr.org/bodyelectric