Bell continues as the co-hosts laugh, "I'm a big fan of waiting for the stink. Once you catch a whiff, that's biology's way of letting you know you need to clean it up. There's a red flag.

Kristen Bell joked that she and Dax Shepard used to wait for their daughters — 8-year-old Lincoln and 6-year-old Delta — to start giving off body odor before bathing them. “I’m a big fan ...