This article explores the vital role of humor in positive psychotherapy and psychiatry, focusing on its evolutionary significance, neurological underpinnings, and therapeutic applications. It examines how humor enhances well-being by promoting emotional resilience, cognitive flexibility, and social bonding. The text also highlights programs to enhance sense of humor such as “The 7 Humor Habits” and “Parasympathetic Habits: Humor and Styles” to integrate humor into everyday life thus improving physical, mental, and relational health.