You are a
nervous system.
Your brain is not fixed. Every difficult decision you make — every time you choose the new behavior over the old one — physically changes your neural architecture.
Sulci makes that invisible process visible, and gives you the biological tools to actually get there.
"Most therapy apps, when they don't address metabolic regulation while asking you to do difficult emotional work, are doing something like asking someone to get dentistry done without anesthesia."
The premise behind Sulci
What Sulci tracks
Three systems. One twin.
Most apps track what you do. Sulci tracks what your body is doing — and uses that to explain why.
Habit Pathways
Your habits are grooves in the brain. Old patterns glow red. Every time you choose the new behavior, green washes over that groove — and you watch your brain change.
How the brain map works →Nervous System State
80% of your vagus nerve runs from body to brain. The volume of your emotions is generated by your body, not your mind. Sulci shows you your polyvagal state in real time.
The vagal layer →Metabolic Foundation
You cannot regulate a nervous system on an empty tank. What you eat, when you sleep, and what substances you use are the foundation of your emotional capacity — not a lifestyle sidebar.
Metabolic regulation →
The Panic Button
When the alarm fires, know what kind.
There are four distinct biological alarm systems — not just "anxious" or "avoidant." Each one is protecting you from a different kind of loss. Each one has a different default movement. And each one needs a different kind of regulation.
- Separation Loss of connection → pursue, seek reassurance
- Engulfment Loss of autonomy → withdraw, create distance
- Evaluation Loss of worth → perform, self-edit, optimize
- Chaos Loss of predictability → control, structure, or freeze
Your digital twin
A living model of you.
The more you use Sulci, the more accurate your twin becomes. You start to recognize your own states. You start to see them coming. That's interoception — a trainable skill.
The progression
First the platform. Then the work.
You can't rewire a depleted nervous system. Sulci builds the foundation first.
Phase 01
Stabilization
Replace substance regulation with food. Learn what your nervous system actually needs. The body has been running on borrowed fuel — this is where you start paying it back.
Phase 02
Restoration
Glycogen stores refill. Sleep improves. Stimulants become optional. Nervous system cycles that were suppressed for years start completing — sometimes loudly. This is not a breakdown. This is biology finishing what it started.
Phase 03
Optimization
Early wake time. Sunlight. Three real meals. Movement twice a day. A sleep ritual that downshifts the nervous system. This is the platform from which the difficult habit work becomes sustainable.
Phase 04
Habit Formation
Now the hard part — and now it's actually possible. Confronting old patterns. Making different decisions at the trigger moment. Watching the brain map change. Feeling yourself change.
Your nervous system can change.
Start watching it.
Sulci is in early development. If this resonates — the biology, the panic model, the idea of a real digital twin of your nervous system — join the waitlist.
Request Early AccessNo spam. Just a ping when the app is ready for testing.