Why Migraine Isn't Caused by One Trigger (And What Actually Lowers Your Threshold)

If you live with migraine, chances are you've spent real time and energy trying to find your trigger.

Maybe you've kept a diary. Cut out wine, chocolate, certain cheeses. Tracked the weather.

And still — the attacks keep coming, sometimes when you've done everything "right," and sometimes staying away when you've supposedly broken every rule.

If this sounds familiar, I want to offer you a different way of thinking about it — one that actually explains the inconsistency that trigger-hunting can't.

Migraine Isn't a Single-Cause Problem

The trigger model assumes migraine works like an allergy: expose yourself to X, get a reaction.

But migraine doesn't behave that way, and if you've lived with it for any length of time, you already know this.

The same "trigger" can sometimes pass without incident and other times set off a full attack.

That's not random.

It's a sign that something else is going on — something the trigger model doesn't account for.

The Threshold Model

Here's a more accurate way to think about it: imagine your nervous system has a threshold — a tipping point.

Below that threshold, you're coping.

Cross it, and you tip into a migraine attack.

Things like poor sleep, accumulated stress, dehydration, hormonal shifts, and sensory overload don't directly cause an attack on their own.

They lower your threshold.

They use up your buffer.

And once your threshold has dropped low enough, almost anything can be the thing that tips you over — even something that's never bothered you before.

This explains exactly the inconsistency you've probably experienced.

The wine wasn't randomly dangerous one week and safe the next.

The week you got the attack, your threshold was already lower from something else — bad sleep, a stressful few days, a busy sensory environment — and the wine was simply the final straw, not the sole cause.

Why This Matters More Than It Sounds

This isn't just an interesting reframe.

It changes the actual question you should be asking.

Instead of "what's my trigger?" — a question that can send you down an exhausting, sometimes impossible hunt — the more useful question becomes:

"What's lowering my threshold right now?"

That's a question you can actually answer and act on.

Sleep quality, stress load, hydration, sensory input — these are things you have some real influence over, far more than you have over hunting down one elusive trigger that may not even exist as a single, isolated thing.

You Can Raise Your Threshold

Here's the genuinely hopeful part: your threshold isn't fixed.

It can move.

Reducing your overall load and improving your nervous system's regulation — its ability to handle stress without tipping into alarm — raises your buffer over time.

This doesn't mean avoiding life. In fact, avoidance often works against you.

It means building capacity — sleep that actually regulates you, tools to calm your nervous system when stress hits, and a body that's gradually re-introduced to the things you might have been avoiding out of fear.

Where to Start

If this threshold model is new to you, the best way to actually feel what it means — not just read about it — is to go through a short, practical experience built around it.

I built a free 5-day reset that does exactly that — one short video and one small action each day, walking you through the threshold model and giving you your first real tools to start raising it.

Start the Free 5-Day Reset →

If you're ready to go deeper, my full 8-week program, Raise Your Threshold, builds this model into a complete, structured path.

Learn more about Raise Your Threshold →