On this week’s podcast, the actor Peter Gallagher reads “Promises That Can Bend Without Breaking,” about how the strength of a marriage can outweigh the uncertainty of health.

The author, Robert St. Amant, is a professor of computer science at North Carolina State University.

You might know Mr. Gallagher as Sandy Cohen from “The O.C.” His recent appearances include the Netflix series “Grace and Frankie” and the film “Literally, Right Before Aaron.” Follow him on Twitter.