This podcast episode interviews Olga Khazan, author and journalist, about her book exploring personality change. The conversation covers the five personality traits, Khazan's personal experiment attempting to alter her own extroversion and neuroticism, and the research behind personality's malleability throughout life. Khazan details her methods (e.g., improv classes, meditation) and their impact, highlighting that even small efforts toward change can yield significant results in mood and outlook. Listeners gain insights into the nature vs. nurture debate concerning personality and practical strategies for personal growth, particularly for those in their 20s. The interview concludes with Khazan's advice for listeners to pursue their goals with full force.