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Meet Your Two Brains

Jul 27, 2025
How the two parts of your brain affect your weight and food choice

You have more than one part of your brain involved in decision-making, but two key players when it comes to weight loss and mindset work are:

1. The Primitive Brain (a.k.a. survival brain, reptilian brain)

This is your instinctual, automatic brain. It’s designed to keep you alive.

It’s constantly scanning for danger, discomfort, and anything that might disrupt safety.

It wants pleasure now, relief now, comfort now.

It’s the part of your brain that says:

“Just eat it. You’ve had a long day. You deserve it.”

2. The Prefrontal Cortex (a.k.a. planning brain, higher brain)

This is your rational, future-focused brain. It’s what makes you human.

It’s the part that sets goals, makes plans, weighs long-term outcomes, and says:

“You said you wanted to feel lighter tomorrow. Let’s pause and choose something that honors that.”

⚖️ Why They Clash (And When)

The primitive brain runs on default. It loves habits—even the ones that don’t serve you.

So when you’re tired, stressed, or triggered, it takes over and drives you toward quick relief—usually through food, scrolling, or zoning out.

Your prefrontal cortex, on the other hand, takes effort. It has to be activated intentionally.

So if you’re not pausing, checking in, or staying mindful…

guess which brain wins?

(Here’s a hint: it’s the one holding the cookie.)

🔁 Why This Matters in Weight Loss

If you keep finding yourself saying things like:

  • “I know what to do, I just don’t do it.”
  • “I keep sabotaging my progress.”
  • “I start strong, then give up.”

…it’s not about being lazy or lacking discipline.

It’s about which part of your brain is in charge.

And here’s the good news: you can train your brain.

You can learn to pause and respond instead of react.

You can strengthen your prefrontal cortex by using tools like:

  • Journaling your thoughts before or after meals
  • Planning your food ahead of time
  • Asking powerful questions, like:
    “What will I thank myself for tomorrow?”

✨ How My Clients Use This in Real Life

One client shared that she used to grab a snack every evening while cooking—even though she wasn’t hungry. That was her primitive brain running the show.

Once we worked together, she started noticing the urge—but instead of reacting, she paused. She’d say out loud:

“This is just my old brain looking for comfort. But I’m building something new.”

That one-second pause gave her power. And over time, her prefrontal cortex got stronger. The habit faded—and her confidence soared.

💬 What This Means for You

Every time you pause instead of react,

every time you plan your meals with intention,

every time you choose your long-term peace over short-term relief—

you’re strengthening the part of your brain that actually wants you to succeed.

You don’t need more motivation.

You need to stop letting your primitive brain drive.

📥 Want to Strengthen Your Prefrontal Cortex Today?

Download my free guide:

👉 6 Steps to Sustainable Weight Loss

It’ll show you exactly how to retrain your brain, make food decisions ahead of time, and create lasting results with mindset—not restriction.

Because real change doesn’t come from willpower.

It comes from knowing who’s in charge in your brain.