The Untrained Brain: Why You Keep Falling Back Into Old Habits (And How to Change It)

Wendy Francis, NBC-HWC – Board-Certified Health Coach and Functional Nutritionist

One of the things I often tell my clients is this: treat your brain like a two-year-old.

Not because it is incapable, but because it is untrained.

We are never handed an owner's manual on how to manage our thoughts, emotions, habits, or reactions. Instead, our brains are shaped over time through life experiences, repeated behaviors, emotional responses, and patterns we don’t even realize we’re reinforcing.

Every habit you have today, good or bad, was learned. That late-night snacking, emotional eating, procrastination, or negative self-talk did not happen overnight. Your brain created pathways based on repetition and reward, and over time those pathways became your normal.

The brain’s primary job is simple: keep you safe and comfortable. The problem is, it does not distinguish between what is truly good for you and what simply feels familiar. Comfort and familiarity win every time unless you intentionally step in and change the pattern.

This is exactly why so many people give in to cravings. It is not just about willpower. When you reach for sugar, processed foods, or comfort snacks, your brain is responding to a learned behavior. It remembers that these actions provided relief, pleasure, or distraction in the past, and it repeats the pattern automatically.

So when stress hits, your brain steps in and says, “We’ve solved this before. Let’s do that again.” It is not trying to sabotage you. It is trying to protect you in the only way it knows how.

The good news is this: your brain can change.

Thanks to neuroplasticity, your brain has the ability to rewire itself. That means even if you have spent years reinforcing certain habits, you are not stuck with them. But just like training a toddler, change takes repetition, consistency, patience, and guidance.

You have to show your brain a new way and reinforce it enough times for it to become the new normal. This is where most people struggle, not because they are incapable, but because they have never been taught how to train their brain.

Instead of relying on willpower, start thinking in terms of retraining. Pause before reacting and create awareness. Interrupt old patterns with a simple reset. Replace habits instead of trying to eliminate them completely. Repeat new behaviors consistently, even when it feels uncomfortable.

The goal is not perfection. The goal is building new pathways that support the life and health you actually want.

I have worked with many clients who felt stuck in patterns they thought they could never break. Through simple, consistent strategies focused on brain retraining and behavior change, they were able to shift their habits, reduce cravings, and feel more in control.

This is not about restriction. It is about understanding how your brain works and using that knowledge to your advantage.

Disclaimer

This content is for educational purposes only and is not intended as medical advice. Always consult with your healthcare provider before making changes to your diet, lifestyle, or health routine.

Sources

National Institutes of Health: Neuroplasticity and Behavior
Harvard Health Publishing: Understanding Habits and the Brain
American Psychological Association: Habit Formation and Behavior Change