What if your habits—those daily choices we try so hard to manage—aren’t really about willpower at all? What if they’re shaped by something much deeper, something often invisible? Lately, you may have seen me share thoughts about behavior change—specifically how it doesn’t start with motivation or discipline. It starts with your body—your first environment . The space where every thought, feeling, and action begins. Today, I want to introduce you to a model that changed everyt