Good Influence

Help the people you love make lasting, healthy changes with this science-backed playbook from two globally renowned behavioral experts with over 50 years of combined experience.

We are surrounded by loved ones who are struggling—with their health, their habits, and their well-being. Whether were watching friends and family grapple with substance use, chronic stress, poor diet, or self-defeating unhealthy routines, the instinct to help is universal. Yet most of us rely on nagging, lecturing, educating, or withdrawing; strategies that backfire, deepen resistance and strain relationships rather than inspire change.

In Good Influence, behavioral scientists Jay Maddock and Justin Moore draw on decades of research to offer a clear, practical guide to one of the most overlooked challenges in self-improvement: how to help someone else change. Blending cutting-edge behavioral science with relatable real-world scenarios, they reveal why people engage in harmful behaviors, why change is so difficult, and how support, done right, can make all the difference.

You will learn how to:
Replace ineffective habits like enabling and nagging with evidence-based support strategies Understand the psychology and timing of healthy behavior change Communicate in ways that build trust, motivation, and momentum Create environments and relationships that make healthier choices easier
Accessible, compassionate, and grounded in science, Good Influence empowers readers to become a steady, skillful force for positive change in the lives of those who matter most.