Today we wrap up the three-part series Blood, Sweat, and Tears. First how it feels to lose your ability to cry; then why onions bring on the waterworks.

SHOW CLOCK

00:00 Opening Credits

00:42 Introduction

01:33 Emotional Tears

09:35 Onion Tears

13:24 Closing Credits

CREDITS

Special thanks to Douglas Smith and Jennifer Dionisio for researching this show. A Distillations Explainer produced by Josh Kurz. Additional credits available at chemheritage.org/distillations.