Dr. Kelli Harding’s The Rabbit Effect: Live Longer, Healthier, and Happier with the Groundbreaking Science of Kindness is included in PART 1: The Purposeful Investor under the chapter “Your Capital and the Power of Generosity” because its evidence-driven exploration of how kindness, human connection, community and life purpose materially affect health — exemplified by the famed rabbit experiment and broader research showing loneliness and social environment predict health outcomes — gives a scientific rationale for recognizing and valuing non‑financial human capital; the book therefore strengthens the case for centring generosity, relationships, skills, time and networks alongside financial capital when shaping a purposeful, impact‑oriented investment approach (recommended by Steph). URL: https://www.kellihardingmd.com/the-rabbit-effect