Testosterone Optimization for Men Over 40 — The Executive’s Evidence-Based Guide

Testosterone is not just a sex hormone. It is the primary driver of muscle mass, fat distribution, energy levels, cognitive performance, mood, and competitive drive in men. After age 30, testosterone declines at approximately 1% per year. By 50, many men are operating at 30–40% below their peak levels — often without knowing it. Rhett Kenagy’s approach to testosterone optimization is physician-guided, data-driven, and rooted in the same system that produced his documented 76-lb transformation at age 50.
How to Know If Your Testosterone Is Affecting Your Performance
Persistent fatigue despite adequate sleep. Difficulty building or maintaining muscle despite training. Increasing abdominal fat that resists dietary intervention. Reduced mental sharpness or motivation. Decreased libido. These are not signs of aging that must be accepted — they are symptoms of a hormonal environment that can be measured, diagnosed, and optimized with physician guidance.
Natural Testosterone Optimization — The Foundation
Before any pharmacological intervention, the training and lifestyle foundation must be in place. Heavy compound resistance training (squats, deadlifts, bench, rows) has the most robust evidence base for naturally elevating testosterone. Sleep quality and duration — 7–8 hours — is non-negotiable, as testosterone is primarily produced during deep sleep. Reducing body fat, particularly abdominal fat, improves free testosterone levels by decreasing aromatization. Zinc and Vitamin D adequacy are foundational. Stress and cortisol management directly impacts testosterone production.
Physician-Guided Hormone Optimization
When natural optimization has been maximized and clinical deficiency is confirmed via comprehensive bloodwork — total testosterone, free testosterone, SHBG, LH, FSH, estradiol, and PSA — physician-guided testosterone replacement therapy (TRT) or optimization protocols may be appropriate. Rhett works with physicians throughout his own protocol and integrates physician-guided hormone optimization into his private coaching framework for clients whose bloodwork indicates deficiency.
This is not a medical recommendation. Every hormone optimization decision must be made in partnership with a licensed physician who has reviewed your complete bloodwork. What Rhett provides is the accountability and lifestyle framework that maximizes the effectiveness of whatever physician-guided protocol you are on.
Get Started — The Blueprint Includes Hormone Optimization Guidance
The free 7-Month Transformation Blueprint includes the lifestyle and training framework that forms the foundation of testosterone optimization. For physician-integrated private coaching, apply here.


































