Notes from the system
The Field Notes.
Short essays on biology, training, and the executive body. The same frameworks we use with our 1:1 advisor clients — written for the man who reads while he eats.
Building Muscle After 40: The Executive's Playbook
You can absolutely build muscle after 40 — but the program a 25-year-old runs will quietly destroy you. Here's the system that actually works on an executive schedule.
Resistance Training for Testosterone: What Actually Works After 35
Not all lifting raises testosterone equally. Here's what the research says about loading, volume, and rest — and what to put in your program tomorrow.
Signs of Low Testosterone in Men Over 40 (And What to Test First)
The drop is rarely dramatic. It looks like a slow loss of edge — in the gym, the boardroom, the bedroom. Here's how to spot it, what to test, and what the numbers actually mean.
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