Anyone know what book he's referring to that made him rethink exercise & physical fitness? Edit: Maybe this? https://www.amazon.com/Born-Run-Hidden-Superathlet

Anyone know what book he's referring to that made him rethink exercise & physical fitness? Edit: Maybe this? https://www.amazon.com/Born-Run-Hidden-Superathletes-Greatest/dp/0307279189 https://www.amazon.com/Born-Run-Hidden-Superathletes-Greates...