Last week, a story surfaced that has gripped me.

A 55-year-old woman, Lynette Hooker, was living with her husband aboard their 46-foot yacht in the Bahamas. One night, returning by dinghy from shore, she disappeared into the darkness. According to reports, she fell overboard before they reached the boat.

It may have been an accident.

This isn’t about guilt or innocence.

But as more details emerged — concerns about the relationship, heavy drinking, a history family members described as volatile — the same question kept appearing in comment sections and dinner conversations:

Why didn’t she just leave?

I’ve heard that question my whole career. I used to ask it myself.

Then I met Diane.

She came to me for indigestion, heart palpitations, and what she described as a deep sadness she couldn’t shake. After we ruled out anything physical, I asked her an open-ended question I’ve learned to rely on: How are things going in your life?

That’s when the real diagnosis emerged.

Fifteen years. A husband who had never struck her, but had come dangerously close more than once. Verbal abuse that was constant, belittling, and cruel, even as Diane remained the primary financial provider in the household. He hadn’t worked in over a year. He drank to manage whatever was churning inside him.

I asked her why she stayed.

Her answer was simple and devastating: “I don’t know what’s out there.”

Not love. Not hope. Not loyalty.

Fear of the unknown.

Here’s what I’ve come to understand after years of working with patients like Diane: your Automatic Brain — the animalistic, primitive part of your nervous system — is designed not for happiness, but to keep you safe. It doesn’t distinguish between a predator in a cave and an unfamiliar future. To that primitive wiring, both register the same way.

Threat.

This is why change is so hard. Not because people lack willpower. Not because they don’t know better. But because your brain is running a calculation you’re not even aware of, and it keeps arriving at the same answer: stay where you are.

The known, even when it hurts, feels safer than the unknown.

I’ve watched this play out in a hundred different ways. Vincent, forty-five, came to me frustrated and defeated. He had tried to lose weight more times than he could count. Each time he started making progress, something derailed him. A thought would arise, threatening his identity as the big, jolly teddy bear, the life of the party. And suddenly he was eating again, not from hunger, but to return to something familiar. His Automatic Brain didn’t want a new body. A new body was unknown. And unknown meant danger.

We call it self-sabotage. But it’s not sabotage.

It’s protection.

This is what I call being comfortably miserable — and once you see it, you can’t unsee it. It’s the smoker who knows every health risk by heart and lights up anyway because the cigarette is an old friend. It’s the person in a job that quietly hollows them out who keeps finding reasons not to update the résumé. It’s the relationship that stopped serving either person years ago, but leaving feels too exposed, too uncertain, too much like falling.

Your Automatic Brain doesn’t weigh outcomes. It doesn’t calculate what’s probable. It reacts to what’s possible — and the mere possibility of something worse is enough to hold you exactly where you are.

That’s not weakness.

That’s wiring.

But here’s the part that matters: it’s also a lie.

Because the danger of staying in something destructive is almost always greater than the risk of leaving it. Your brain just can’t see that clearly from inside the familiar.

So instead of asking why didn’t she leave, I’d invite you to ask a harder question — one that points inward rather than outward:

Where am I doing the same thing?

Where are you choosing the familiar discomfort over the unfamiliar possibility? What routine feels “safe” to your Automatic Brain simply because it’s known — even though it no longer serves you?

Fear is convincing.

But convincing isn’t the same as right.

If this resonated, it’s because this pattern runs deeper than most of us realize. It’s at the core of what I explore in Fear Is a Liar. 

Related: Patients and Doctors Share a Problem Medicine Rarely Names