Why do identical twins raised apart often end up driving the same car, using the same toothpaste, and even naming their sons the same name? Dr. Elena Santos explores the groundbreaking research of Nancy Segal to reveal how our genetic 'raw materials' exert a silent, permanent pull on our life choices. Discover why the nature vs. nurture debate is shifting toward a more nuanced understanding of how we can engineer our environments to fulfill our true biological potential.