Retraining Your RAS: Why What You Focus On Really Does Grow

Retraining Your RAS: Why What You Focus On Really Does Grow

You've probably heard the saying: what you focus on grows. It sounds like one of those motivational quotes you'd see on Instagram, doesn't it? Something nice to think about, but maybe a bit too simple to be true.

Except it's not just a saying. It's neuroscience.

Let me explain how your brain actually works, and why understanding this mechanism changes everything about how you experience anxiety, opportunity, and your entire reality.

Your Brain's Gatekeeper: The Reticular Activating System

Your brain is bombarded with approximately 11 million bits of sensory information every single second. That's everything you see, hear, feel, smell, taste, and sense in your body and environment.

But here's the problem: your conscious mind can only process about 40 to 50 bits of information per second.

So how does your brain decide which 40-50 bits you get to notice out of those 11 million?

That's where your Reticular Activating System (RAS) comes in. Think of it as your brain's filter system, a gatekeeper that decides what information gets through to your conscious awareness and what gets filtered out.

And here's the crucial part: your RAS filters reality based on what you focus on.

The Car Phenomenon

You've probably experienced this yourself. You buy a new car, or you're thinking about buying a particular model, and suddenly you see that car everywhere. On your street, in car parks, driving past you on the motorway.

Did everyone suddenly buy the same car you're interested in? Of course not.

Your RAS simply started noticing it. The car was always there, but it wasn't getting through your filter before. Now it is, because you've signalled to your brain that this information matters.

The same thing happens when you're pregnant, or thinking about having a baby. Suddenly there are pregnant women and prams everywhere you look.

Your reality hasn't changed. Your filter has.

The Anxiety Connection

Now apply this same mechanism to anxiety.

When you're anxious, you're essentially training your RAS to scan for threats. You're signalling to your brain: danger matters, look for problems, find what could go wrong.

So your brain does exactly what it's designed to do. It filters reality to show you evidence of threats.

You notice the person who didn't smile back. You replay the conversation where you might have said something wrong. You spot every possible thing that could go badly in your day. Your body tenses at every unfamiliar sensation, wondering if something's wrong.

This isn't because the world is full of threats. It's because your RAS is showing you a filtered version of reality based on what you're focused on.

And here's where it gets really powerful: this creates a feedback loop.

You focus on threat → your RAS shows you evidence of threat → this confirms your anxiety → you focus more on threat → your RAS shows you more evidence.

The anxiety feels completely valid because your brain is literally showing you proof that the world is dangerous.

But it's not showing you the whole picture. It's showing you the 40-50 bits out of 11 million that match what you're looking for.

Enter Neuroplasticity

Now here's where understanding gets even more empowering.

Your brain isn't fixed. It's constantly rewiring itself based on what you repeatedly think and do. This is called neuroplasticity.

Every time you repeat a thought pattern, you strengthen the neural pathway associated with that pattern. Neuroscientists describe it as: neurons that fire together, wire together.

So when you repeatedly focus on anxiety, scanning for threats, worrying about worst-case scenarios, you're not just filtering your current reality. You're physically rewiring your brain to make that pattern stronger and more automatic.

This is why anxiety can feel so ingrained. You're not weak or broken. You've simply trained your brain, through repetition, to default to this pattern.

But here's the beautiful part: if your brain learned this pattern through repetition, it can learn a different pattern the same way.

What You Focus On Really Does Grow

Now we can put it all together:

Your RAS filters reality based on what you focus on + Your brain rewires based on repeated patterns = What you consistently focus on literally shapes your brain and your experience of reality.

This is the neuroscience behind "what you focus on grows."

If you focus on threats, your RAS will show you more threats. If you repeat this focus consistently, your brain will wire itself to make threat-scanning automatic and effortless.

If you focus on possibility, your RAS will show you more opportunities. If you repeat this focus consistently, your brain will wire itself to notice potential and options.

If you focus on what's wrong with you, your RAS will provide endless evidence. If you focus on your growth and capacity, your RAS will show you that instead.

The reality around you hasn't changed. But your filter has. And your filter determines your lived experience.

The Practical Implications

Understanding this mechanism doesn't make anxiety magically disappear. Your RAS has been trained over years, possibly decades, to scan for threat. Those neural pathways are well-established.

But it does give you real power to change.

Because now you know:

Your anxiety isn't showing you objective reality. It's showing you filtered reality based on what your RAS has been trained to notice.

Your thought patterns aren't permanent. They're learned, which means they can be unlearned and replaced through consistent practice.

You're not at the mercy of your brain. You can systematically retrain your RAS and rewire your neural pathways by changing what you focus on.

This isn't about positive thinking or pretending threats don't exist. It's about understanding that your current filter is showing you a skewed version of reality, and you have the capacity to adjust that filter.

The Shift Starts With Awareness

The first step is simply noticing what your RAS is doing.

When you catch yourself in an anxiety spiral, pause and ask: Is my brain showing me the whole picture, or is it filtering reality to show me threats?

When you notice you're scanning for what could go wrong, gently redirect: What else is here that I'm not noticing?

When you find evidence that confirms your fears, question it: Is this evidence of real danger, or is my RAS doing what it's been trained to do?

This awareness doesn't change your patterns overnight. But it interrupts the automatic loop. And that interruption is where change begins.

Over time, with consistent practice, you can retrain your RAS. You can build new neural pathways. You can shift from a brain wired for threat detection to a brain wired for possibility.

Not because you're forcing positivity or ignoring reality. But because you're teaching your filter system to show you a more balanced, more accurate version of what's actually there.

Your Focus Is Your Power

What you focus on really does grow. Not in some mystical, manifesting way. In a literal, neurological way.

Your focus trains your RAS. Your RAS filters your reality. Repeated focus rewires your brain.

You've been focusing on threat for good reasons. Your brain was trying to keep you safe. But that protective mechanism has likely kept you stuck, small, and exhausted.

Now you know how it works. And knowing how it works gives you the power to change it.

Your anxious brain isn't broken. It's trainable. And you're the one holding the reins.