27/03/2026
You are hard-wired to constantly scan and filter for anything that could impact your survival.
Most people recognise physical danger as a threat.
What many don’t realise is this:
Uncertainty is also a threat.
Once upon a time, uncertainty had real consequences.
If you didn’t know how to hunt, you didn’t eat.
If you couldn’t predict the behaviour of your group, you lost protection, warmth, connection and even the chance to share your genetic material.
That could mean death.
This wiring hasn’t changed. It’s still embedded in your biology today.
Your stress response system doesn’t distinguish between physical threat and cognitive threat.
To your brain:
Threat is threat.
So when you feel uncertain, your brain activates the same survival systems—cortisol release.
Cortisol influences the brain's ability to learn, respond, react, move, problem solve, reason, regulate and more!
When your brain feels uncertain, it will try to create certainty.
If real data isn’t available, it will generate it.
It does this by:
• pulling from past experiences
• making predictions
• forming expectations
• creating opinions
• building internal narratives
This is your brain trying to stabilise itself by generating it's own certainty (even if it's not true, it's something that might make sense and therefore stabilise the threat circuitry).
When we use these systems repeatedly without drawing on real-time data (what we see, hear, feel, smell, taste), something important occurs:
Your brain can get stuck in self-generated loops to fill in the uncertainty gaps.
These loops create feedback to the brain that can:
• increase cortisol
• increase emotional intensity
• dysregulate your nervous system
• keep your internal alarm system switched on
Over time, this can lead to:
□ reactivity
□ hypervigilance
□ reduced reasoning capacity
□ difficulty regulating emotions
□ reduced empathy
□ distorted threat detection
So what’s the solution?
Focus on REAL certainty within uncertainty.
Not by controlling the external world—but by noticing your internal state.
Your internal state is real-time data.
Start with two things:
• How activated is your nervous system right now?
• What emotional signals are present?
When you can accurately identify:
• your nervous system's level of activation
• your emotional state
You now have real data.
And with real data comes something powerful:
Choice.
YOU can consciously decide what to do next—rather than react automatically.
This is internal signal awareness.
The combination of awareness and what you do with that awareness is what:
• reduces emotional intensity
• stabilises your nervous system
• rebalances your brain’s safe/unsafe circuitry
You don’t need to eliminate uncertainty.
You just need to find certainty from what is happening inside of you.
Happy brain training 🧠 💪
𝐂𝐡𝐚𝐫𝐥𝐨𝐭𝐭𝐞 𝐌𝐨𝐨𝐫𝐞
Trauma & Stress Neurobiology Consultant | Translational Neuroscientist