Guest host David Kestenbaum talks to producer Diane Wu about a list she keeps of things she means to know. Sweet potatoes vs. yams.

Diane Wu has the story of a woman who goes to South Korea to meet her birth mother, a trip that lets her visit one of the other worlds in which she almost lived.

Remember learning that women’s menstrual cycles tend to sync up when they spend a lot of time together? Producer Diane Wu was skeptical. So she went looking for evidence.

Comedian Jillian Welsh tells Diane Wu about one of the most romantic—and stressful—nights of her life, a night that paralleled the plot of a rom-com in several ways. A version of this story first appeared on the Risk! podcast.