What Happens Inside My Body After I Lose Weight? (And Why It Feels So Hard to Keep It Off)

The Habit Healers · Jan 20, 2026 · 7m

I want to talk about what no one tells you after you lose weight—what actually changes inside your body, and why keeping the weight off can feel so much harder than losing it in the first place.

In this episode, I walk through what I’ve learned from decades of metabolic research and clinical medicine: when you lose weight, your body doesn’t reset. It remembers. And biologically, it fights to return to where it was before.

We’ll unpack the science of adaptive thermogenesis—the quiet metabolic shift that makes your body burn fewer calories, move less, and slow down even when your habits haven’t…