Time & ROI
You don't have a time problem. You have an energy problem.
Not more hours in the gym — the right ones. Following the MED principle, we get you in shape with the minimum effective effort. Maximum ROI, no sacrificing your life.
PRAECIS · HEALTH & PERFORMANCE
Your body sendsmillions of signals.We read the right ones.
Physician-led health & performance coaching.
01 — Where You Stand
Your business scales. Your body doesn't.
At 25 health took care of itself. Past 40 it takes strategy. Most performers only notice once energy, focus and shape have long begun to slip — and mistake stress for the price of success. It isn't.
Stress & Recovery
Successful but burnt out? That's rarely burnout — often a nutrient deficit.
We measure instead of guess: blood markers, sleep and stress load, reviewed by a physician. Recovery returns before your body pulls the emergency brake.
Status & Body
You run a company — but not your own body.
The slow decline past 40 isn't fate, it's a data problem. We reverse it measurably — a physique that matches your success.
Business KPIs
Your biological age is a revenue lever.
Energy, focus and presence into the evening decide your best decisions. We treat health like a metric: measured, managed, optimised.
Performance Assessment
Where exactly do you stand? The PRAECIS Performance Assessment gives you a clear read on your baseline in just a few minutes.
02 — The Thesis
Not more. The right things.
Your body constantly sends millions of signals — heart rate, sleep stages, blood markers, stress load. Most coaching ignores this stream of data and guesses. PRAECIS analyses it and brings order to the chaos.
From that we draw conclusions that contradict the classic more-is-more — we work by two principles:
“We don't change more — we change the right things.”
PRAECIS Philosophy
02.1
Precision
We analyse before we recommend. Every decision — training, nutrition, supplements, recovery — rests on evidence and individual needs, not on marketing and trends.
02.2
Minimum Effective Dose
No chasing a perfection that can't be sustained. We identify the interventions with the greatest impact — the right thing, precisely dosed. No more, but no less either. That is the MED principle.
03 — The Method
Three steps. One system.
Not an off-the-shelf programme — a repeatable clinical process.
Diagnostics
In-depth intake, blood panel analysis, wearable baseline. We establish where you stand and read it in context before we recommend anything.
Protocol
Your personal protocol: training plan, nutrition strategy and supplement recommendations — derived from your data and your daily life, not from templates.
Iteration
Weekly check-ins, continuous tracking, re-testing. Your individual protocol keeps adapting — until you reach your goals.
04 — Who We Are
Medicine and mathematics meet performance coaching.
Together we bring decades of experience and expertise that complement each other precisely — medicine and mathematics, clinic and competition stage, theory and lived practice. We teach nothing we don't live ourselves.
Arik Wenger
Coaching & Training
Mathematician and risk manager by profession, natural pro bodybuilding world champion on stage. Arik proves that a world-class physique and a demanding job are no contradiction — through system, not through more effort.
Dr. med. Lukas Barwitz
Medicine & Diagnostics
Physician, nutritionist and personal trainer in one person. Lukas fought his way back to life after a serious illness of his own, and is responsible for diagnostics, blood work analysis and medical guidance — living the PRAECIS lifestyle alongside clinical practice.
05 — The App
An operating system for your body.
The custom-built PRAECIS app brings together everything that describes your state: training, nutrition, recovery, supplements, blood panels, check-ins, wearables. It is the central, intelligent data hub that makes your progress visible and keeps learning as it goes — week after week.
HRV Baseline
0
ms — RMSSD, 7-day average
Baseline: 42Target: 75
VO₂ Max
0.0
ml/kg/min — week 12
Baseline: 48.2Target: 65
Sleep Score
0
/ 100 — 7-day rolling
Baseline: 61Target: 90
Resting HR
0
bpm — weekly average
Baseline: 68Target: 50
06 — The Coaching Plans
Clear goals. Clear performance.
Every engagement is 1:1 and personal. The foundation is your training and nutrition plans, supplement and recovery protocols and weekly check-ins — individualised and tailored to your needs. We do the thinking and keep adapting them from your data.
Admission is by qualifying call only. We work with a limited number of clients each quarter — real guidance, not volume.
Core Protocol
on request
- 1:1 online coaching
- Training & nutrition plan
- Weekly check-ins
- Access to the PRAECIS app
Recommended
Precision Protocol
on request
- Everything in the Core Protocol
- Direct physician access
- Medical review of your blood panel every 3 months
- Supplement protocol
- Access to the Performance Series e-books
- Priority support
07 — Performance Series
The system. For self-study.
The PRAECIS Performance Series: our frameworks as e-books — as a complement to your coaching, or as a standalone starting point if you prefer to execute yourself.
The MED Protocol
Maximum performance with the minimum effective dose
The Gut Code
A science-based framework for restoring gut health
The Next Step
The first step is a conversation.
In a qualifying call we clarify your starting point, your goals and whether we're a fit. We take on only a limited number of new clients each quarter — free and no obligation.