Body Science
We translate diagnostic data—DEXA, VO₂ max, RMR—into constraint-based training and nutrition programming.
Founded by Joel Yakowitz (28-year healthcare veteran), we identify your physiological bottleneck and engineer your program.
06/01/2026
This June I'll be taking the stage at the 𝗨𝗹𝘁𝗶𝗺𝗮𝘁𝗲 𝗠𝗲𝗻 𝗢𝘃𝗲𝗿 𝟰𝟬 𝗚𝗹𝗼𝗯𝗮𝗹 𝗩𝗶𝗿𝘁𝘂𝗮𝗹 𝗛𝗲𝗮𝗹𝘁𝗵 𝗦𝘂𝗺𝗺𝗶𝘁 alongside 100+ world-class doctors, specialists, and performance experts.
𝗝𝘂𝗻𝗲 𝟴-𝟭𝟰, 𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲𝗹𝘆 𝗳𝗿𝗲𝗲 𝘁𝗼 𝗮𝘁𝘁𝗲𝗻𝗱.
This summit was built for men in their 40s, 50s, and 60s who are done being handed strategies designed for guys half their age. Every session is built around what actually works when your hormones, recovery, and physiology have changed and the old playbook stopped delivering.
𝗜'𝗹𝗹 𝗯𝗲 𝘀𝗽𝗲𝗮𝗸𝗶𝗻𝗴 𝗼𝗻 𝗽𝗿𝗲𝗰𝗶𝘀𝗶𝗼𝗻 𝗹𝗼𝗻𝗴𝗲𝘃𝗶𝘁𝘆: how clinical measurement identifies the exact constraint holding your performance back, and what to do about it with data instead of guesswork.
Seven days. Seven pillars. Testosterone and hormones, training and fitness, nutrition, sleep and recovery, mindset, lifestyle and longevity, and a Pro Day specifically for coaches working with men over 40.
Register free and grab your spot. My personal link is in bio.
See you inside.
05/31/2026
The VIP Pass: For People Who Actually Want to Use This Stuff
Free registration gets you into the live sessions. Seven days, 100+ speakers, solid content. For a lot of people that's enough.
The VIP Inner Circle is for people who know they'll want to go back.
Lifetime access to every single talk. The full bonus stack — workout programs, nutrition system, testosterone masterclass, sleep challenge, kettlebell workshop, meal prep guides, and a t-shirt that confirms you've officially committed to the second half. Plus access to the summit vault with 250+ talks from past events.
Seven days of live content is a lot to absorb in real time. The recordings mean you can pull up the specific talk that applies to whatever cylinder you're working on, six months from now, when it actually matters.
Early-bird VIP is $97. I'm a speaker and affiliate for this event, so full transparency — my link supports both. Either way, the free registration is genuinely free and worth doing first.
👉 Register free or upgrade to VIP:
https://www.menover40healthsummit.com/a/2148255456/gqHJXRUb
05/29/2026
May was about forging the machine. Understanding the two cylinders that determine your long-term structural and cardiovascular durability. Building the dataset that the Engine Report will interpret.
June is about going deeper.
The Decoder early access is opening. The Engine Report is taking shape. And for anyone who wants to understand what precision longevity actually looks like in practice, there has never been a better moment to be paying attention.
If you have been measuring, you are ahead. If you have been reading but not yet acting, the gap between knowing and doing is exactly one appointment.
Start building your dataset now. Book your DEXA and VO2 Max at DexaFit Seattle or DexaFit Renton Link in comments
05/29/2026
Registration Is Open. Here's Why This One Is Worth Your Time.
The Ultimate Men Over 40 Global Health Summit runs June 8–14.
𝗩𝗶𝗿𝘁𝘂𝗮𝗹, 𝗳𝗿𝗲𝗲 𝘁𝗼 𝗮𝘁𝘁𝗲𝗻𝗱, and built around practitioners who show their work.
The speakers bring data and diagnostic frameworks. The content assumes you're past the point of needing motivation and ready for methodology. Seven days, seven pillars, 100+ experts covering what the second half of life actually demands from a performance and longevity standpoint.
I'm delivering two talks. "The Second Engine" is for men over 40 who want to understand how the Longevity Engine shifts after 40 and what precision-based training looks like when you stop chasing volume. "The Constraint: Men Over 40 Edition" is built for coaches and practitioners working with this population — diagnostic methodology, pattern recognition in structural and cardiovascular data, and where the constraints compound when left unaddressed.
If you've been following this month's content, you've already seen the framework.
The Summit is where it goes deeper, with voices beyond mine adding their own diagnostic and clinical perspectives.
Registration is free. My affiliate link gets you in. (Link in the comments)
05/28/2026
This month we have been building toward something: a system that takes your clinical test data and translates it into a personalized longevity roadmap.
𝗧𝗵𝗲 𝗘𝗻𝗴𝗶𝗻𝗲 𝗥𝗲𝗽𝗼𝗿𝘁 𝗶𝘀 𝘁𝗵𝗮𝘁 𝘀𝘆𝘀𝘁𝗲𝗺. It maps your DEXA, VO2 Max, RMR, Proteus Power, Movement screening, Grip Strength results through the Longevity Engine framework to produce a document that identifies your primary constraint, explains the mechanism driving it, and outlines the intervention priorities in order.
The Decoder is the tool that generates it. Early access is opening soon.
Here is what that means for you right now: every measurement you take before The Decoder launches becomes more valuable the moment it does. Your DEXA body composition data. Your VO2 Max thresholds. Your RMR baseline. The Decoder doesn't need new data. It interprets the data you already have.
Try the Engine Read Tool now for free. Link in comments
05/27/2026
𝗬𝗼𝘂𝗿 𝗯𝗼𝗱𝘆 𝗿𝘂𝗻𝘀 𝗼𝗻 𝗳𝗶𝘃𝗲 𝗰𝘆𝗹𝗶𝗻𝗱𝗲𝗿𝘀.
Chances are you are already doing something in most of them, training, eating with some intention, trying to sleep well, managing stress when you can. The work is happening. What is usually missing is the framework that connects it.
When you understand which cylinder each habit is feeding, two things happen. You start to see why certain things are working and others are not producing the results you expect. And you get clear on where your attention is thin, not because you have been lazy, but because nobody handed you a map.
The Longevity Engine is that map. Five cylinders: Metabolic, Structural, Cardiovascular, Neural, Cognitive. Each one measurable. Each one with a specific intervention when it is your limiting factor. Swipe through to see your training, nutrition, sleep, and daily habits through a different lens.
05/26/2026
This month established something important: the machine is measurable, the constraint is identifiable, and the intervention should be specific to what the data actually reveals.
The Longevity Engine Read Tool demonstrated the concept. Enter your data, see your cylinder scores, identify the primary constraint. It is a meaningful starting point built on self-reported inputs and simplified reference ranges.
The Decoder takes it the rest of the way.
It runs your clinical test data, DEXA bone density and body composition, VO2 Max with full ventilatory threshold mapping, Proteus 3D power output, RMR with metabolic flexibility analysis, through the five-cylinder Longevity Engine framework and produces a personalized Engine Report.
The Engine Report does not just score the cylinders. It explains the mechanisms driving each score. It identifies the interaction effects between systems, where the structural cylinder is limiting cardiovascular output, where metabolic inefficiency is undermining structural maintenance, where the neural cylinder is constraining power expression before the muscles show any measurable deficit. And it produces a programming priority sequence: the specific order in which constraints should be addressed for maximum return on intervention.
This is the interpretation layer at full depth.
Early access is forming now. The first cohort will be clients and practitioners with current clinical data on file. If your DEXA, VO2 Max, or Proteus assessments are more than three months old, this is the time to update them. Current data produces the most accurate Engine Report.
Testing is available at DexaFit Seattle and DexaFit Renton. If you already have recent data from another facility, it may be interpretable through The Decoder without retesting. Book a call and we will determine what you have and what you need.
05/26/2026
𝗔 𝘀𝗰𝗼𝗿𝗲 𝘁𝗲𝗹𝗹𝘀 𝘆𝗼𝘂 𝘄𝗵𝗲𝗿𝗲 𝘆𝗼𝘂 𝘀𝘁𝗮𝗻𝗱. 𝗜𝘁 𝗱𝗼𝗲𝘀𝗻'𝘁 𝘁𝗲𝗹𝗹 𝘆𝗼𝘂 𝘄𝗵𝘆 𝘆𝗼𝘂'𝗿𝗲 𝘁𝗵𝗲𝗿𝗲 𝗼𝗿 𝘄𝗵𝗮𝘁 𝘁𝗼 𝗱𝗼 𝗮𝗯𝗼𝘂𝘁 𝗶𝘁.
The Longevity Engine Read Tool scores your cardiovascular, structural, and metabolic cylinders against age and sex-specific reference ranges. It identifies your primary constraint. It assigns an Engine Status. For a lot of people that single read is enough to change the direction of everything they're doing.
But a score is not an interpretation. It cannot tell you which specific calibration points within each cylinder are driving the number. It cannot tell you why the constraint exists or what the precise intervention sequence should be. It cannot build the roadmap.
𝗧𝗵𝗮𝘁 𝗶𝘀 𝘁𝗵𝗲 𝗶𝗻𝘁𝗲𝗿𝗽𝗿𝗲𝘁𝗮𝘁𝗶𝗼𝗻 𝗹𝗮𝘆𝗲𝗿. 𝗔𝗻𝗱 𝘁𝗵𝗮𝘁 𝗶𝘀 𝘁𝗵𝗲 𝗴𝗮𝗽 𝗧𝗵𝗲 𝗗𝗲𝗰𝗼𝗱𝗲𝗿 𝘄𝗮𝘀 𝗯𝘂𝗶𝗹𝘁 𝘁𝗼 𝗰𝗹𝗼𝘀𝗲.
The Decoder takes raw clinical data from your DEXA, VO2 Max, and RMR assessments and translates it through the full Longevity Engine framework into a personalized Engine Report. Not just cylinder scores. The specific mechanisms driving each score, the programming priorities that follow, and a complete intervention sequence built around your actual primary constraint.
The early access list is forming now. More details are coming.
Try the Engine Read Tool now while you wait. Link in the comments
05/24/2026
The Longevity Engine has five cylinders. This month we went deep on two of them.
Most people think about health in single metrics. Cholesterol. Weight. Resting heart rate. A number that either passes or fails. What we've been building this month is a different framework entirely: your body as a system of interdependent cylinders, each one capable of limiting the output of the whole machine when it falls below threshold.
Here's what most people don't realize: the tests that map these cylinders don't belong to a single system. A DEXA scan generates structural data and metabolic data simultaneously. A VO2 Max test maps cardiovascular output and metabolic efficiency in the same breath. The cylinders share inputs, share stressors, and respond to the same neglect.
That's why reading them in isolation misses the point. The real insights live in the connections between them.
Swipe through to see the full framework. Then try the Engine Read Tool in the comments
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111 W John Street
Seattle, WA
98119
Opening Hours
| Monday | 8:45am - 6pm |
| Tuesday | 8:45am - 4:30pm |
| Wednesday | 8:45am - 4:30pm |
| Friday | 8:45am - 4:30pm |
| Saturday | 8:45am - 2pm |