Some people are good at putting themselves in another person's shoes. Others may struggle to relate. But psychologist Jamil Zaki argues that empathy isn't a fixed trait. This week, in our final installment of You 2.0, we revisit a favorite episode about how to exercise our empathy muscles.

You 2.0: Empathy Gym

Shankar Vedantam uses science and storytelling to reveal the unconscious patterns that drive human behavior, shape our choices and direct our relationships.