Hi {{first_name|there}}, it’s Thomas.

There’s a moment most of us recognize. You think about reaching out to someone: a friend you haven’t spoken to in a while, a colleague you’d like to know better, or even a stranger who seems interesting. You hesitate. You overthink. You imagine the awkwardness, the rejection, the possibility that it won’t land the way you hope. And then, more often than not, you do nothing.

Heck, more often than not, when I’m in such a situation, I do nothing. I have over half a century of surviving myriad small rejections, yet I still pause. And even though I know the neuroscience behind all this, I’m constantly surprised by how often I’m still tempted to do nothing.

I take comfort in knowing the moment is not a failure of intention. It’s biology.

It’s in all of us.

And if you don’t recognize the behavior in yourself? (lucky you) I guarantee you know at least three people who react this way. Read on to understand how you can help them rewire their own biology.

At the center of this hesitation is the amygdala, often referred to as the brain’s alarm system. It sits deep in what’s sometimes called the “lizard brain,” the most evolutionarily ancient part of our neural architecture. Its job is simple: detect threats and keep you safe. It is fast, reactive, and biased toward caution.

Opposing it is the prefrontal cortex, the more recently evolved “CEO” of the brain. This is the part responsible for long-term thinking, planning, and decision-making. It is the voice that knows relationships matter, that understands the value of connection, and that encourages you to take small risks today for larger rewards tomorrow.

When your lizard brain senses even a hint of social risk, it activates a cascade of responses designed to protect you from harm. Your thoughts narrow. Your body tightens. Your imagination fills in worst-case scenarios. And in that moment, the prefrontal cortex often gets overridden. You default to safety, which in modern life usually means inaction. Which leads to isolation.

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From an evolutionary standpoint, this response makes perfect sense. For most of the last 250,000 years of human history, survival depended on belonging to a group. To be excluded from your tribe was not merely uncomfortable; it was life-threatening. Isolation meant vulnerability, lack of resources, and eventual death.

Your brain has not forgotten this.

Even though the modern world offers countless ways to connect, relocate, and rebuild, the amygdala still interprets social risk through an ancient lens. A simple unanswered message or an awkward conversation can trigger the same neural circuitry that once responded to existential threats. “Did I do something wrong?” “Why am I being excluded?” “Abort, abort, abort!”

The stakes, in reality, are far lower. But your brain does not operate on reality alone. It operates on pattern recognition shaped over thousands of years.

The irony is that the very system designed to protect you is now one of the primary barriers to connection.

Most people are not avoiding relationships because they do not value them. They are avoiding the initial discomfort required to create them. They remain in familiar routines, interact with the same limited circle, and wait for others to make the first move.

This is how social networks shrink over time. Life keeps taking people out of our orbits: changed jobs, moves to a new city, kids matriculating to new schools. If we don’t replace this attrition, our network shrinks. Not through deliberate withdrawal, but through accumulated moments of hesitation

Research across psychology and sociology consistently shows that strong social ties are among the most important predictors of long-term health, resilience, and well-being. Yet the mechanism that would help build those ties is often suppressed by short-term fear.

The result is a quiet but persistent gap between what we know we should do and what we actually do. All because of that damn lizard brain.

Here is the part that is easy to miss: the fear you feel is not unique to you. It is universal.

The person you are considering reaching out to is likely running a similar internal calculation. They may also be waiting, also hesitant, also unsure whether their effort will be welcomed. In many cases, two people remain disconnected not because of a lack of interest, but because both are deferring to their own lizard brain.

This creates an opportunity.

When you make the first move, you are not imposing. You are interrupting a shared pattern of hesitation. You are giving the other person permission to engage. And more often than not, you will find that their response is warmer than your amygdala predicted.

The prefrontal cortex does not eliminate fear, but it can reframe it. It can recognize that the potential upside of connection far outweighs the minimal downside of an awkward moment. It can guide you toward action despite the discomfort your lizard brain is triggered by.

That is what courage looks like in practice. Not a dramatic gesture, but a small decision to act in alignment with what you value rather than what you fear.

The more you act in spite of that initial hesitation, the more you retrain your brain. Each positive interaction becomes new evidence that connection is not dangerous. Over time, the amygdala’s alarm softens, and the prefrontal cortex gains influence.

This is not about eliminating fear entirely. It is about reducing its authority.

You begin to recognize the signal for what it is: an outdated warning system responding to a modern situation. And instead of obeying it, you acknowledge it and move forward anyway.

Before the next issue of this newsletter hits your inbox, pay close attention to the moments when you feel that initial hesitation to reach out. Rather than avoiding it, treat it as a cue.

Choose one person you have been meaning to contact and make the first move. Keep it simple and direct. Suggest a conversation, a coffee, or a brief catch-up.

Then, go one step further. Initiate a short interaction with someone new, even if it is just a brief exchange that opens the door to a future connection.

Notice what happens, both externally and internally. The response you receive will likely be more positive than expected. More importantly, you will begin to build a new pattern, one where your decisions are guided less by fear and more by intention.

Your lizard brain will not disappear entirely. But it does not have to be in charge.

What’s been your lizard brain experience? Do you have something you think could help others tame theirs? Just hit reply — your email goes straight to my inbox. 🙏