The Science Behind Why He Won’t Change | Dr. Justin Nussbaum | S4E11

Send Lisa a question for her to reply in a future episode!The Science Behind Why He Won’t Change | Dr. Justin Nussbaum If you’ve ever wondered why some people seem incapable of real change no matter how much therapy, pleading, or effort goes in, this episode delivers the science that explains it. Lisa Sonni sits down with Dr. Justin Nussbaum to break down the genetics and neuroscience behind personality traits, narcissism, and personality disorders. They explore the significant role of heritability (often 50-70%), twin studies, and how genetics and environment interact to shape empathy, emotional regulation, and behavior patterns. Dr. Nussbaum busts common myths about trauma being the sole cause of abusive or narcissistic behavior, explains neurological pathways involved in empathy (or the lack of it), and discusses the realistic limits of change. This conversation empowers survivors with a clearer, science-based understanding of why hoping for transformation in certain personalities can keep them stuck — and why recognizing these biological realities is key to making safer, healthier decisions. A must-listen for anyone seeking clarity, validation, and freedom from false hope in toxic relationships.Join Lisa Sonni & Dr. Peter Salerno in Boston, MA November 13-15, 2026 here: https://lisasonni.com/unbreakable-and-irreplaceable/ Support the showThis is the podcast they don't want you listening to.👉 Find me at lisasonni.com Book A Session with LisaJoin my online survivor community called She Rises Collective where we are breaking free, rebuilding and dismantling patriarchy. Follow on IGWatch on YouTubeGet My Books HereNew episodes drop every Tuesday.Subscribe, share it with someone who needs the truth - and remember:You’re stronger than they ever wanted you to believe.