Today we begin the three-part series Blood, Sweat, and Tears. First how one man solved the mystery of blood function; then how researchers will bust blood-doping athletes at the Olympic games.

SHOW CLOCK

00:00 Opening Credits

00:48 Introduction

02:10 Blood Puzzle

07:34 Blood Doping

19:19 Closing Credits

CREDITS

Special thanks to Hannah Hoag and James Voelkel for researching this show. A Distillations Explainer produced by Josh Kurz. Additional credits available at chemheritage.org/distillations.