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Home » Bestselling Author Charles Duhigg on Mel Robbins Podcast (Transcript)

Bestselling Author Charles Duhigg on Mel Robbins Podcast (Transcript)

Here is the full transcript of Pulitzer Prize–winning journalist and bestselling author Charles Duhigg’s interview on The Mel Robbins Podcast episode titled ” Get Back on Track: 3 Small Habits That Change Your Body, Energy, and Life”, December 1, 2025.

If you’re feeling unmotivated, stuck, or frustrated with yourself, this conversation with Mel Robbins and Pulitzer Prize–winning author Charles Duhigg gives you a simple way to reset before the year ends. Duhigg breaks down the science of habits into clear, doable steps and reveals three “keystone” habits—exercise, a specific kind of morning routine, and basic tracking—that quietly transform your body, mood, and self-discipline with minimal effort. You’ll learn the ARC morning formula (anticipation, relaxation, connection), how to use rewards so behavior change actually sticks, and why small daily actions matter more than willpower or “motivation.” This is a practical, research-backed playbook you can start using tomorrow to feel more energized, focused, and in control of your life.

Introduction: The Power of Habits with Charles Duhigg

MEL ROBBINS: Charles Duhigg, I am so excited that you’re here to teach us all about habits.

CHARLES DUHIGG: Well, thank you. This is such an honor for me. I really appreciate it.

MEL ROBBINS: Well, you know, your book The Power of Habits changed my life. It is the best and it is the seminal and it is the original incredible book about habits. The research is unreal. I cannot wait for you to unpack all that today.

And I’d love to start by having you speak directly to the person who’s listening. They do not have a lot of time, but they have found the time to spend it with you and me. And they cannot wait to learn about your research with habits, how to create a positive ripple effect in their life.

Can you tell this person what might change about their life if they take everything that you’re about to share today and they apply it?

Every Habit Can Be Changed

CHARLES DUHIGG: Absolutely. So here’s the thing. I would say every habit can be changed. You can create as many habits as you want. You can change that habit that’s been driving you crazy for years. You can change it.

Because the way that habits work is that it’s a very simple thing that happens inside our brain. And once we know how to take a habit and break it apart into its components, then suddenly we can adjust anything that we want to in our life.

So you can become any person you want to be. You can build the habits that make you into a marathoner. You can abandon the habits of drinking or overeating that have weighed you down once you understand how to change the habits.

MEL ROBBINS: I love that you started there because you said simple. And to me, behavior change on its face seems simple, but it is so dang hard to do. And so you’re seriously going to teach us how we could create habits that change who we are, make more money? That’s a habit.

CHARLES DUHIGG: Absolutely. You’re exactly right. It is simple. It doesn’t mean it’s easy.

MEL ROBBINS: Okay?

CHARLES DUHIGG: Right. There’s lots of simple things, and you’re going to make it easy, but we’re going to make it easier. We’re going to tell you exactly the steps to take. Because the truth of the matter is that once we start to change our habits, it has a cascade effect, and it changes the rest of our life.

Understanding Keystone Habits

MEL ROBBINS: So cascade, meaning what?

CHARLES DUHIGG: Meaning that there’s a chain reaction that something happens that causes other habits to change without us even having to use our willpower to change them. Within the literature, this is known as a keystone habit.

MEL ROBBINS: Okay, what is a keystone habit?

CHARLES DUHIGG: So, a keystone habit, what we know is that some habits are more powerful than others.

MEL ROBBINS: Okay? So there’s a hierarchy to habits.

CHARLES DUHIGG: There’s a hierarchy to habits. And sometimes when you change the right habit, it sets off this chain reaction in the rest of your life. One of my favorite examples of this is exercise.

MEL ROBBINS: Okay?

CHARLES DUHIGG: Right. So we all know that on the mornings that you go and you exercise, for some reason at lunch, you eat healthier. Right? And if you think about it, that doesn’t necessarily make any sense. Right. But it’s easier. For some reason, my legs are kind of sore. Suddenly, I go into the cafeteria and I get a salad instead of that sandwich that I always get.

But what’s really interesting is these two researchers named Otten and Chang. What they looked at is other things that change. What they found is that on the mornings when people exercise, they tend to use their credit cards less that day.

MEL ROBBINS: What?

CHARLES DUHIGG: They procrastinate less at work. They’ll actually start doing the dishes, washing the dishes 20 minutes earlier in the day. Nobody goes for a run in the morning and thinks, “Oh, I’m going to keep the Amex in my pocket today.” But what’s happening is that for many people, exercise is a keystone habit. When you start to exercise, it sets off this chain reaction that changes other patterns in your life. Your eating patterns, your spending patterns.

MEL ROBBINS: Wow.

CHARLES DUHIGG: It’s really powerful.

Habits Shape Who We Are

MEL ROBBINS: Well, okay, so I just want to back up a minute because I’m excited. Because you’re not only going to teach us the research and science about habits and the simple need to understand to lock them in, but you’ve already said something that I want to make sure that the person listening really captured. Okay? And that you’re going to take away.

Because one of the things that struck me about your remarkable New York Times bestseller, The Power of Habit, is that being successful in life isn’t about talent. That the science says that habits shape who we are and the outcomes that we achieve more than your ability.

Can you unpack what that means?