Why Zebras Don't Get Ulcers (And Why You Might)
This post is based on Robert M. Sapolsky book 'Why Zebras Don't Get Ulcers'. A great book to understand what's real and what's perceived stress. A must read.
A zebra grazing on the savanna spots a lion. It runs — full speed, everything it has, for its life.
Then the moment it's safe, something remarkable happens: it just... stops. Goes back to grazing. No lingering tension, no replaying the chase in its head, no restless night worrying about tomorrow's lion. The stress response did its job, and the body let it go.
Humans don't do this nearly as well. And that difference might explain more of your stress than you think.
The Lion in Your Head
Here's the problem: your body can't always tell the difference between a real threat and a perceived one.
A real threat is a lion. Immediate. Physical. It needs you to act right now.
A perceived threat is a difficult email sitting in your inbox. A conversation you're dreading tomorrow. Something that went wrong last week that you're still replaying. None of these are lions. None of them require you to sprint anywhere. But your body often reacts as if they do — heart rate up, muscles tight, mind racing — and then it stays that way, because there's no clear moment where the "danger" ends.
The zebra runs from a real lion for a few minutes and then it's over. Many of us run from perceived lions all day, every day, without ever getting the "all clear."
Why This Matters More Than It Sounds
Stress that never gets to finish its cycle doesn't just disappear — it accumulates. It shows up as poor sleep, short tempers, foggy decisions, and the kind of low-grade exhaustion that no amount of coffee fixes.
For anyone leading a team, running a business, or simply trying to think clearly under pressure, this is worth taking seriously. You can't out-work a nervous system that never gets to stand down.
A Simple Fix
You don't need to eliminate stress — that's neither possible nor the goal. The zebra doesn't avoid lions forever. It just does two things well:
It tells real danger from perceived danger. Before reacting, it's worth asking: is this actually happening right now, or is this a thought about the past or the future?
It lets the stress finish. Once the threat (real or imagined) has passed, it does something physical — a walk, a stretch, a few slow breaths — to signal to the body that it's genuinely over.
That's really the whole practice. Not suppressing stress, not overthinking it — just sorting it correctly, and giving your body permission to come back down afterward.
A daily or weekly check :
Reference and Link: Why Zebras Don't Get Ulcers
Comments