Built to Adapt Pt 4
Your Metabolism Is Not Broken
Last week, we talked about the immune system and how your body is constantly protecting you, even when it doesn’t feel like it. That idea starts to shift the way you look at symptoms. Instead of assuming something is wrong, you begin to ask what your body is responding to. This week, we’re going to take that same lens and apply it to something that almost everyone has an opinion about, and very few people actually understand.
Metabolism is one of the most talked about and misunderstood aspects of health and fitness. People throw the word around constantly, usually as an explanation for why something isn’t working. “I just have a slow metabolism” has become one of the most common conclusions people arrive at, almost like it’s a fixed trait they were born with and have no control over.
But your metabolism isn’t a fixed trait. It is a response.
It does not exist in isolation or operate on its own. It is constantly adjusting based on how you live. Your metabolism reflects your environment, your habits, your movement, your muscle mass, your sleep, your stress levels, and your nutrition. It is your body’s way of managing energy based on the demands you place on it. At its core, your metabolism is always asking a simple question: how much energy do I need to keep this person alive and functioning based on what they’re doing? And then it adapts to that.
If you are not moving much, your body becomes more efficient and uses less energy. If you are under-eating, your body conserves energy. If you are highly stressed or not sleeping well, your body shifts priorities away from long-term optimization and toward short-term survival. None of this is random, and none of it is your body working against you. It is your body doing exactly what it is designed to do.
This is where a lot of people get stuck, because the message they have been given does not reflect how the body actually works. Instead of seeing metabolism as something dynamic and responsive, it gets framed as something fixed, something you either have or do not have. Once that belief sets in, it becomes easy to feel like you are fighting an uphill battle that you cannot control. You start to outsource the explanation, and eventually, you start to outsource the solution.
This is where the conversation around metabolism starts to intersect with a much bigger narrative in the health and fitness space. Recently, there has been a lot of attention around medications like GLP-1s, with high-profile figures openly talking about their experiences. You are starting to hear more language around things like having an “obesity gene,” as if weight struggles are primarily predetermined and out of someone’s control.
While genetics can influence how our bodies respond to food, store energy, and regulate appetite, that is only one piece of the picture. The risk comes when that idea becomes the dominant narrative, when people begin to believe that their situation is fixed, that their body is the problem, and that the only real solution is something external. That shift in thinking matters, because it pulls attention away from the things that actually drive long-term change.
The body is not passive. It is adaptive.
Medications like GLP-1s can have a place in certain situations. They can be helpful tools, particularly for individuals who need support breaking out of patterns that are difficult to change. But they do not replace the foundation. They do not override the reality that your metabolism is still responding to how you live. If someone improves their sleep, builds muscle, eats in a way that supports their body, and moves consistently, their metabolism will change. If those things are neglected, the body will adapt in the other direction. No medication changes that fundamental relationship.
Reducing something as complex as metabolism down to a single cause or a single solution is where people get misled. It creates the illusion that there is a shortcut, when in reality, what matters most is the system as a whole. I have seen this play out repeatedly. People feel stuck, believe their metabolism is broken, and think they have tried everything. But when you look closer, there are consistent gaps. Sleep is inconsistent, movement is sporadic, nutrition is reactive, and stress is high. The system is under constant pressure, and the body is simply adapting to that environment.
When those inputs begin to change, the system changes with them. Not overnight, and not always easily, but consistently over time. This is what people miss when they look for a quick explanation. Your metabolism is not something you fix once. It is something that is constantly adjusting in real time, shaped by your habits, your environment, and your behaviors day after day.
That is also what makes this empowering. Your body is not working against you. It is not stuck or broken. It is responding to the life you are living. When you begin to change that environment, even in small ways, your body adapts in a different direction. Instead of asking what is wrong with your metabolism, a better question is what your body is responding to.
Change is not only possible, it is already happening. The question is simply in which direction.
In next week’s Built to Adapt blog, we will take this even further and look at how your body manages energy on a day-to-day basis, and why feeling stuck, tired, or resistant to change is often part of a much larger adaptive process.
