#232 Testosterone Screening, Metabolic Health, and Hormone Optimization: Free T, SHBG, hCG, and Body Composition

This episode explores the opportunities and risks of testosterone optimization, beginning with the US military's decision to screen men over 30 for low testosterone. Dr. Mike Hart and Dr. Jonathan Schoeff discuss why symptoms such as fatigue, low libido, and difficulty changing body composition cannot be interpreted from a single lab value. They examine the importance of free testosterone, SHBG, insulin resistance, visceral fat, estradiol, DHT, fertility, and individualized dosing. The conversation also challenges common measures such as BMI and body fat percentage, emphasizing skeletal muscle mass, visceral adiposity, sustainable health goals, and the minimum effective intervention.

 

Dr. Jonathan Schoeff is a spinal surgeon and longevity medicine practitioner whose work focuses on hormone health, metabolic optimization, body composition, and individualized health strategy. Through comprehensive laboratory testing, clinical assessment, and personalized treatment planning, he helps clients understand how hormones, insulin sensitivity, muscle mass, visceral fat, lifestyle, and long-term health goals interact. Describing his role as that of a "biological strategist," Dr. Schoeff emphasizes precision over standardized protocols and develops practical plans designed around each person's biology, priorities, and daily life.

 

Health and Human Performance Optimization to Enhance Military Readiness — U.S. Department of War

https://media.defense.gov/2026/Jul/15/2003961654/-1/-1/1/HEALTH%20AND%20HUMAN%20PERFORMANCE%20OPTIMIZATION%20TO%20ENHANCE%20MILITARY%20READINESS%20OSD004430-26%20RES%20FINAL.PDF

 

Influence of CAG Repeat Polymorphism on the Targets of Testosterone Action — Giacomo Tirabassi et al.

https://pubmed.ncbi.nlm.nih.gov/26421011/

 

Comparative Effects of Daily and Weekly Boron Supplementation on Plasma Steroid Hormones and Proinflammatory Cytokines — Mohammad Reza Naghii et al.

https://pubmed.ncbi.nlm.nih.gov/21129941/

 

Women's Health Initiative — National Heart, Lung, and Blood Institute, National Institutes of Health

https://www.nhlbi.nih.gov/science/womens-health-initiative-whi

 

Surviving Sepsis Campaign Adult Guidelines — Society of Critical Care Medicine

https://www.sccm.org/survivingsepsiscampaign/guidelines-and-resources/surviving-sepsis-campaign-adult-guidelines

 

The Longevity Lab — Dr. Jonathan Schoeff and Candace Schoeff

https://longevitylabwellness.com/

 

Jonathan Schoeff on Instagram — Dr. Jonathan Schoeff

https://www.instagram.com/jonschoeff/

 

Jonathan Schoeff on YouTube — Dr. Jonathan Schoeff

https://www.youtube.com/@drjonschoeff

 

Show Notes

 

00:00 Welcome to the Hart2Heart Podcast

00:42 Military Low T Screening

04:32 Normal Ranges and Treatment

08:19 Free Testosterone and Insulin

12:35 High SHBG and Enclomiphene

15:54 hCG Fertility and Protocols

19:35 Obesity Low T Strategy

23:26 Aromatase Inhibitors and Estrogen

26:51 DHT Mood and Libido Balance

28:57 DHT Balance Risks

30:10 Minimum Effective Dose

31:55 Longevity Strategy Mindset

33:31 Clinic Cuts Alcohol Use

35:40 Goals Drive Strategy

38:06 Body Fat Targets Debate

41:54 Sustainable Leanness

45:33 Personalized Nutrition Plans

48:09 Beyond Body Fat Metrics

52:29 Rules Not Regulations

53:31 Wrap Up And Where To Find

 

The Hart2Heart podcast is hosted by family physician Dr. Michael Hart, who is dedicated to cutting through the noise and uncovering the most effective strategies for optimizing health, longevity, and peak performance.

This podcast dives deep into evidence-based approaches to hormone balance, peptides, sleep optimization, nutrition, psychedelics, supplements, exercise protocols, leveraging sunlight, and de-prescribing pharmaceuticals — using medications only when absolutely necessary.

Beyond health science, we explore the intersection of public health and politics, exposing how policy decisions shape our health landscape and what actionable steps people can take to reclaim control over their well-being.

Guests range from out-of-the-box thinking physicians such as Dr. Casey Means (author of "Good Energy") and Dr. Roger Sehult (Medcram lectures) to public health experts such as Dr. Jay Bhattacharya (Director of the National Institutes of Health (NIH) and Dr. Marty Mckary 

(Commissioner of the Food and Drug Administration (FDA) and high-profile names such as 

Zuby and Mark Sisson (Primal Blueprint and Primal Kitchen).

If you're ready to take control of your health and performance, this podcast is for you.We cut through the jargon and deliver practical, no-BS advice that you can implement in your daily life, empowering you to make positive changes for your well-being.

 

Connect with Dr. Mike Hart

Instagram: @drmikehart
Twitter: @drmikehart
Facebook: @drmikehart