About Alex Parengkuan — Founder OPTT | Core Four
About Alex

You’ve been working on the symptoms.
I work on the root cause.

22 years ago it began with a diploma and a feeling of not knowing enough. Today Alex Parengkuan works with founders, CEOs and entrepreneurs who know there is more in them — and are right.

Book your free analysis →
Alex Parengkuan
The story

From powerless
to a method.

The beginning
A diploma and a feeling of not enough
After obtaining his physiotherapy diploma, Alex knew one thing for certain: he didn’t yet know enough to truly help people. The guidelines of physiotherapy and the contracts of health insurers didn’t allow him to address the core of a problem. Only the symptoms were allowed to be treated. That felt like the wrong direction.
Neptunus Baseball
Top performance as a laboratory
For seven years Alex was head therapist at Neptunus Baseball — six-time national champion, three-time European Cup winner. In those years he learned what actually makes the difference between functioning and excelling. Not just the body. The entire system.
Seattle, 2016
The master course that changed everything
After a 7-week Functional Patterns master course in Seattle, Alex realised he no longer fit into the box of physiotherapist. During a release technique on his ribs he was suddenly back in 1994 — 14 years old, kicked, left for dead. 22 years later he finally understood: the body keeps the score.
2019
MS diagnosis — and the disappearance of every symptom
The diagnosis: multiple sclerosis. But before the next MRI — while the double vision had just started — Alex understood where it was coming from. He saw two things he was focusing on that were in direct conflict. At the moment he recognised that, the double vision disappeared. Literally. His first intervention: grounding. Direct contact with the earth — so the body returns to electrical balance. His second: investigating and addressing his stressors. The MRI still shows MS. No medication. To this day.
"I felt powerless when I was only allowed to treat the symptoms while I could see the underlying processes. Body, Being, Balance, Business. That forms the Core Four. That is the root."
Alex Parengkuan — Founder OPTT

More than €150,000 invested in education and courses. From physiotherapy to functional patterns, quantum biology, mitochondrial health, stress regulation and the Your Health Concept Academy.

The method

Three pillars.
One system.

The Core Four method always works in this order. Not the other way around. Each level builds on the one before it.

01
The Cell — Light, Water & Magnetism
Your body was designed to be connected to the earth. We’ve lost that connection in daily life. Office lighting, phones, screens — they disrupt the biological clock at a cellular level. Grounding, natural light and water quality are not hacks. They are the baseline condition for how the body was designed to function.
02
The Stress Response — Regulation & Recovery
A nervous system that is permanently switched on undermines every other recovery process. Stressors are not only external — they live in unresolved conflicts, in two directions you’re pulling at the same time. Only when the nervous system regulates does everything downstream work properly.
03
The Biomechanics — Structure & Movement
Only when the cell and stress response are in order does biomechanical correction work structurally. In that order. Not the other way around. This is why physiotherapy, supplements and diets provide temporary relief — they address the third pillar without ever touching the first two.
The vision

A healthy leader
builds a healthy organisation.

The reason Alex works with entrepreneurs is not because it is a lucrative niche. An entrepreneur is the most important link for the people around them. You spend 8 to 12 hours a day at work — that creates the conditions for everything that follows. At home. In your organisation. For the people who depend on you.

400+
Individual programmes
€150k+
Invested in education
22
Years of experience (physio from 2007)
6x
6x national champion
Background & education

More than €150,000
invested in education.

A selection of the education, courses and training that form the foundation of the Core Four method.

Physiotherapist — Bachelor of Physiotherapy
Certified Trainer
Functional Patterns — 7-week master course, Seattle
Your Health Concept Academy — Quantum biology, mitochondria, chronobiology
Head therapist Neptunus Baseball (7 years) — 6x national champion, 3x European Cup
Stress regulation & nervous system — multiple specialist trainings
Mitochondrial health & quantum biology
Performance coaching — 400+ individual programmes since 2017
Next step

Understanding your system
starts with one conversation.

In 30 minutes Alex will show you where your Core Four is stuck — and what that means biologically.

Book your free Core Four Analysis →

30 minutes. No obligations. No pitch.