This Is Your Body on Cycling

Editor's Note: This article first published in the print edition of Bicycling. Subscribe now!

Your body isn’t a temple, it’s a machine.

It’s not just any machine, though. It’s the world’s most complex super-computer; a thing of baffling intricacy, with inner-workings so complex scientists still puzzle over pieces of it. And if you’ve ever wondered what’s really going on with it as you ride, here’s your moment-by-moment guide to the beast within.