SummitChathamMillburnShort Hills
Private. In-home. By appointment.

The one expert who can pass his own test.

Private strength and health coaching for accomplished people over 40. I read the entire health industry the way I read a market for fifteen years. Then I built the one thing none of them will.

Request a consultation What the industry won't tell you
1:1
Never a shared session
40+
The decade we specialize in
In-home
Your home or private office
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The standard

I read the whole industry
so you don't have to.

You are good at your work. For decades you have been paid to tell the signal from the noise, to know which expert is worth listening to and which is selling a story. So you already sense what happens when you look into your own health. The whole industry shows up at once, each one certain, each one selling a slice, and not one of them will show you the proof.

I spent fifteen years building data systems and turning thousands of scattered signals into a single decision. When my own health slipped in my 40s, I turned that same discipline on the health industry itself. I studied all of it. The lab platforms, the longevity clinics, the rings and the apps, the clinics selling testosterone and peptides by subscription, the AI coaches quietly piping your most personal data to someone else's model.

Most of the people selling you health cannot pass their own test.

That is the job I do. I sit between your doctor, your training, your labs, and your data, and I turn all of it into one decision a week. I train, every week, the way I will train you. I read your numbers through a private system I built myself. They never touch ChatGPT, Claude, or any outside service. Nothing is sold, nothing is stored beyond what serves your plan. The system is the service. It is included, always.

Who we train

A small roster of people like you.

Stillwell is selective on purpose. A limited number of clients, so each one receives genuine attention.

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The time-poor

You run a full calendar. The hour has to come to you, fit around travel, and waste none of itself.

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Still in the game

Golf, tennis, skiing, keeping up with kids and grandkids. You train to keep doing what you love, without the injury that takes it away.

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The restarter

You've been strong before, or never found the right approach. You want a professional who respects your history, your joints, and your time.

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The long-game thinker

You see strength for what it is after forty: the single best investment in the next thirty years. Measured, progressed, taken seriously.

What strength pays out

Everyone sells one piece.
Strength delivers all of it.

The clinic sells you vitality in a vial. The nootropic sells you focus. The longevity service sells you the years. Each is one payoff of the one input they all skip: a trained, strong body, measured.

i

Vitality

The earned version of what a clinic sells in a vial. Energy that returns to your day instead of leaving it.

ii

Focus

A mind that stays sharp through a long afternoon, supported by the training the research keeps pointing back to.

iii

Memory

Cognition protected by movement and strength, the most reliable lever we have for the aging brain.

iv

Agility

The balance and mobility that keep you on the court, the trail, and the slopes, not the sidelines.

v

High performance

Capacity for the life you actually lead, built deliberately and progressed against the numbers.

vi

Muscle

The one asset that walks out the door after 40 unless you defend it. We defend it.

vii

Anti-aging

Not a serum and not a scan. The muscle, balance, and bone that decide how your sixties and seventies actually feel, defended now while it is still easy.

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One foundation

Seven payoffs, one input. Trained strength is the dividing line between aging well and aging fast.

The industry teardown

Seven things none of them will tell you.

I studied every major health platform the way I studied markets. Here is what would not survive a single diligence meeting.

01

The biomarker count is marketing

One sells "160+ biomarkers," the next "130+," the next "100+." Inflated and inconsistent between vendors. One person reading the right twenty in context beats a dashboard of two hundred you will never understand.

02

Your "biological age" won't show its work

Some use a blood method, some methylation, most never disclose which. A number with no method is a horoscope with a decimal point. I tell you what we measure and why.

03

"HIPAA compliant" often isn't

One of the most-used phrases in this industry, and frequently a company that is not even a covered entity. Read the fine print on the apps you already use, then ask where your data actually goes.

04

Your AI coach runs on someone else's model

The best-known coaches run on outside AI. Your sleep, your heart rate, your bloodwork, processed on a server owned by a company whose business is data.

05

The advice is never neutral

Every platform earns its margin on the back end, on supplements, retests, or the prescription. When the business depends on keeping you subscribed, "you need more" is a sales target, not a finding.

06

The $20,000 scan is not a plan

Imaging and genome sequencing are real and powerful. But a risk score is not a plan, and a clinic you see twice a year is not a coach. You leave with a PDF and a bill.

07

None of them is in the room

Every human coach in this industry is remote, async, or in a clinic across town. Not one will be standing next to you when you lift, with your full picture in front of them. That is the one thing I do that no subscription can copy.

Your own analyst

A private system, built for you.

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Built by me, not rented from an app

Your sleep, HRV, bloodwork, training and body composition, read together by a system tuned to you. Your numbers never touch ChatGPT, Claude, or any outside service. Not a setting you toggle. The architecture.

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In your home, in person

Every competitor's human support is remote or in a clinic across town. I am in the room, with your full picture in front of me.

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No back end, no upsell

No supplement funnel, no retest you did not need, no subscription stacked on a subscription. The advice is neutral because there is nothing else to sell.

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Concierge data, your own roof

The expensive diagnostics, partnered out and read for you. Top-clinic insight without top-clinic data-handling risk.

The approach

Strength is the longevity strategy.

"Most people over forty don't need to be pushed harder. They need to be trained smarter."

The body you carry into your seventies is built in your forties and fifties. Muscle, balance, and bone are the dividing line between aging well and aging fast, and they respond to the right work at any age, provided the work is intelligent.

So we train for the long arc. Joint-friendly strength over ego lifts. Mobility that keeps you on the court, the trail, and the slopes instead of the sidelines. Conditioning that returns energy to your day rather than taking it.

And when modern tools belong in the plan, they are used with authority, not hype. A GLP-1 is paired with the training and protein to protect the muscle it quietly strips. Testosterone, where warranted, is run with your labs and your training, not instead of them. Supplements are cut to the few your data justifies. The medicine serves the work, never the other way around.

The proof, in numbers

Why the work is worth it.

8 hrs
of exercise training the average physician receives across four years of medical school.
10–17%
lower risk of dying tied to strength training, in 30 to 60 minutes a week.
> BP
grip strength predicts your lifespan more accurately than your blood pressure.
Private memberships

Membership, not drop-ins.

Twelve one-to-one in-home sessions each month, plus the full system around them. The longer the commitment, the better the rate. Confirmed by consultation and limited by capacity.

Quarterly
3-month membership
$225/ session
Billed monthly · 12 sessions
  • 12 private 60-minute in-home sessions / month
  • Full baseline assessment & re-tests
  • Custom training & nutrition program
  • The private system, included
  • Monthly progress review
Start here
Most chosen
Charter
12-month · best value
$179/ session
Billed monthly · 12 sessions
  • Everything in the shorter terms
  • Lowest per-session rate
  • Priority scheduling & first call on time slots
  • Quarterly body-composition deep review
  • Session banking for travel weeks
Become a Charter member
Biannual
6-month membership
$199/ session
Billed monthly · 12 sessions
  • 12 private 60-minute in-home sessions / month
  • Full baseline assessment & re-tests
  • Custom training & nutrition program
  • The private system, included
  • Progress reviews every 6 weeks
Choose Biannual

Partner training

Train alongside a spouse or colleague in the same private session. Two sets of hands, one coach, shared cost, on every membership term.

Ask about partner rates

Rates shown are representative starting points and are confirmed at your consultation based on location and frequency.

When you travel

Remote coaching, for the weeks away.

The same programming and oversight, delivered through the coaching app when you are out of town.

Blueprint

Programming & structure

A fully personalized program in the app, with exercise demonstrations, monthly review, and email support.

Guided

Coaching & accountability

Everything in Blueprint, plus weekly check-ins, video form review, and nutrition structure.

Concierge

Hands-on remote support

Priority messaging, unlimited form analysis, coaching calls, and daily accountability for a specific goal on a tight timeline.

Aarjay, Founder and Head Coach at Stillwell Private
Your coach

An analyst's mind. A coach's hands.

Founder & Head Coach

I spent fifteen years building data systems, turning thousands of scattered signals into a single decision. Then my own health slipped in my 40s, and I turned that same discipline on myself, and on the entire health industry I was about to spend money in.

I am not your doctor, and I will not pretend to be. I am the one who sits between your training, your labs, and your data and makes it make sense, one clear decision a week. I train, every week, the way I will train you. I read your numbers through a private system I built, with absolute discretion. Your data is analyzed for you, never stored, never shared.

NASM Certified Personal TrainerNutrition CoachWellness CoachInsured & discreetBy appointment
Good questions

Before you book.

Accomplished men and women, generally in their 40s, 50s and 60s, who value their time and privacy and want to be strong and capable for the long run. We keep the roster small, so not every season has openings.

No. Your coach brings everything the session needs and sets it up in whatever space you have, a spare room, a basement, a garage, even a cleared corner of an office.

Yes. Two well-designed sessions a week, run consistently for a year, is over a hundred quality training hours, more than enough to get meaningfully stronger and leaner.

That is exactly who in-home training serves best. We schedule around your calendar, Charter members can bank sessions during travel weeks, and remote coaching keeps you on program while you are away.

It stays yours. Your numbers are read through a private system built in-house, never sent to ChatGPT, Claude, or any outside service, never sold, and never stored beyond what serves your plan. Most apps and clinics do the opposite. Here, your data goes nowhere.

Coaches are insured, background-checked, and discreet. For clients who require it, we are comfortable with confidentiality agreements. What happens in your home stays there.

A no-cost conversation and a brief in-home assessment. We discuss your goals and history, take baseline measures, and leave you with a clear sense of the plan. No pressure either way.

Begin

Book a private consultation.

Membership is by consultation and limited by capacity. Pick a time that suits you, and we will arrange a complimentary conversation and in-home assessment. If it is not the right fit, you have still gained a professional read on where to start.

  • 1Choose a time. Pick a slot on the calendar, it takes a minute.
  • 2We meet. A complimentary in-home assessment and an honest conversation about fit.
  • 3You decide. If it's right, we set your schedule and begin. No pressure either way.