Patients seek empathy from their physicians. Medical educators increasingly recognize this need. Yet in seeking to make empathy a reliable professional skill, doctors change the meaning of the term. Outside the field of medicine, empathy is a mode of understanding that specifically involves emotional resonance. In contrast, leading physician educators define empathy as a form of detached cognition. In contrast, this article argues that physicians' emotional attunement greatly serves the cognitive goal of understanding patients' emotions. This has important implications for teaching empathy.