How People Break Themselves Doing Everything Right

A pattern I’ve seen, and fallen into myself

Whenever someone in the fitness space dies young, a thought creeps in.

“Was it the thing that was supposed to make them healthier?”

I came across the death of Michael Mosley recently. A doctor turned broadcaster, known for making sensible, evidence-based programmes about diet and exercise. He died on a rocky part of the Greek island of Symi after setting off on a walk in extreme heat. One litre of water. A biscuit. A hat. An umbrella.

The official cause is unclear. Most likely heatstroke, or some “non-identified pathological cause”.

That should be the end of it.

But it nags.

Because if you’ve seen his work, like The Truth About Exercise, you know how reasonable it all is. Measured. Practical. The kind of advice I agree with and talk about myself.

Which raises an uncomfortable question.

Where does “sensible” turn into “too far”?

I don’t want to speculate about what happened to him.

But I am interested in a pattern I recognise.

You start with something reasonable.

A protocol. A method. Something that works.

Then curiosity creeps in.

“What happens if I push this a bit more?”

And because your body adapts, “a bit more” keeps moving.

Those 20 or 30-second all-out efforts get stronger. Harder. More convincing.

And at some point, without noticing, you’re no longer exploring.

You’re testing limits.

I know this because I’ve done it.

More than once, in fact.

One example I wrote about in detail in Sprints – None Better Than Overdone. If you’ve read it, you know how easy it is to take something time-limited and still overdo it. The ceiling comes fast. After that, you’re not building capacity any more. You’re just increasing the chances of something going wrong.

The second one was truly dumb.

I went for a winter dip in the Mediterranean. Not extreme, but cold enough. Came out, saw a clear path, and decided to sprint.

I remember pausing for a moment.

Wondering. “Is this a good idea? What’s going to happen when all that cold blood gets pumped back quickly through the heart?”

Then I did it anyway.

My heart did not like it. It hurt in a way that made me fearful. That was enough for me.

There’s a trait that shows up everywhere. In bacteria, in animals, in humans.

The ones that explore the edge sometimes gain an advantage.

But they also disproportionately remove themselves from the population.

So what’s the takeaway?

Please, understand where this goes if you’re not paying attention.

Reasonable → curious → excessive → regret.

It’s a smooth slope.

You don’t feel the moment you cross into a dangerous territory.

This is why I keep coming back to DSY.

Don’t Shit Yourself.

It sounds like a joke. It isn’t.

It’s a constraint. A way of stopping that creeping escalation.

I talk about it a lot. I even build things like Pretend-Injury Time Off into my method, to force restraint.

And still, I manage to mess up sometimes.

So don’t take this as advice from someone who has “nailed it”.

Take it from someone who has seen where it leads.

Be smarter than me.

Oh, and one last thought.

Peter Attia wrote Outlive.

If I ever write one, it’ll be called Outsmart.

What I’m doing, and why

I am an anthropologist turned fitness YouTuber, and my work focuses on something most of the fitness world gets wrong: how to build strength and flexibility without surrendering your life to the gym, and without breaking yourself in the process.

The course I have built is shaped by long-term thinking about our bodies, minds, and habit formation. It is designed for people who want to stay capable for decades.

Supporters on Buy Me a Coffee get access to the beta version. This is early access to the system while it is still being refined, before it is packaged and priced and released to the world at large. If my way of thinking resonates with you, this is the moment to step inside.

To those who already support my work, thank you. You are backing a model of fitness that refuses to accept frailty as the default. It’s an alternative to the Fitness Dark Ages we’re currently living through.