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Probably never.
And that is exactly why so many marriages are dying from a condition that has both a diagnosis and a treatment.
In 16 years of practice in functional and integrative medicine, I have developed a hormonal investigation protocol that I apply to couples in crisis. It is not couples therapy — although it often renders therapy unnecessary. It is evidence-based medicine applied to the biochemistry of your relationship.
This article is the checklist I wish every couple had access to. Use it as a guide for a conversation with your doctor. Print it and bring it to your appointment. Share it with your spouse. Because the decision to investigate together is, in itself, an act of love.
Why Hormone Tests Are Essential for Marital Health
Hormones regulate everything that matters in a relationship:
When these markers are out of balance, symptoms present as relationship problems: lack of interest, irritability, emotional distance, absence of intimacy.
The couple goes to therapy. Buys books on communication. Tries to “reignite the spark.” But no behavioral technique resolves a problem that is biochemical in origin.
This is what I call the biochemical divorce — and it is happening in millions of marriages right now. Understand the full concept at: [Biochemical Divorce: How Hormones Are Destroying Your Marriage](/en/biochemical-divorce/).
> [WHAT THE SCIENCE SAYS]
> A cohort study published in the Archives of Sexual Behavior (2020) evaluated 1,200 couples and found a significant correlation between individual hormone levels and reported marital satisfaction. Couples where both partners had sex hormones within the optimal range (not just “normal”) reported greater sexual satisfaction, fewer conflicts, and greater perception of emotional support. The researchers concluded that “hormonal evaluation should be considered as part of the investigation of chronic marital complaints.”
Complete Hormone Checklist for Him
The male investigation goes far beyond total testosterone. The ideal panel includes:
Sex hormones and regulators
| Test | What it reveals |
|—|—|
| Total testosterone | Overall production — but does not say how much is available |
| Free testosterone | The biologically active fraction — the one that actually matters |
| SHBG | Protein that “sequesters” testosterone — if high, little remains free |
| Estradiol | Excess indicates aromatization (testosterone converting to estrogen) |
| DHT | Active metabolite — relevant for libido and prostate |
| LH and FSH | Differentiate primary (testicular) from central hypogonadism |
| Prolactin | Elevated levels suppress libido and testosterone |
| DHEA-S | Marker of adrenal reserve and hormonal precursor |
Stress axis
| Test | What it reveals |
|—|—|
| 4-point salivary cortisol | Circadian pattern — far more informative than serum cortisol |
| DHEA/Cortisol ratio | Evaluates the anabolic vs. catabolic balance |
Metabolism and inflammation
| Test | What it reveals |
|—|—|
| Fasting insulin | Insulin resistance is the enemy of testosterone |
| Fasting glucose and HOMA-IR | Evaluates metabolic risk |
| Hemoglobin A1c (HbA1c) | Average blood sugar over the last 90 days |
| High-sensitivity CRP | Marker of chronic inflammation |
| Homocysteine | Cardiovascular and neurological risk |
Thyroid
| Test | What it reveals |
|—|—|
| TSH | Screening — but insufficient in isolation |
| Free T4 | Storage hormone |
| Free T3 | Active hormone — the one that actually produces effects |
| Anti-TPO and Anti-thyroglobulin | Thyroid autoimmunity (Hashimoto's) |
Essential micronutrients
| Test | What it reveals |
|—|—|
| Vitamin D (25-OH) | Hormonal cofactor — optimal above 40 ng/mL |
| Zinc | Essential for testosterone synthesis |
| RBC magnesium | Serum magnesium is imprecise — RBC is the gold standard |
| Ferritin | Excess or deficiency affects energy and hormones |
| Vitamin B12 | Neurological and energy cofactor |
To understand what low testosterone does to a marriage: [Low Testosterone and Marriage Problems: How Silent Andropause Destroys Relationships](/en/low-testosterone-marriage-problems/).
Complete Hormone Checklist for Her
Women have a more complex hormonal orchestra — and one that changes radically with age. The investigation needs to be even more comprehensive.
Sex hormones and regulators
| Test | What it reveals |
|—|—|
| Estradiol | Central female hormone — drops in perimenopause and menopause |
| Progesterone | First to decline — affects sleep, mood, and anxiety |
| Total and free testosterone | The female desire hormone — rarely tested, always important |
| SHBG | If high, reduces free testosterone and estradiol |
| DHEA-S | Adrenal reserve and precursor to testosterone and estrogen |
| LH and FSH | Elevated FSH confirms menopausal transition |
| Prolactin | Elevated levels suppress ovulation and libido |
| AMH (anti-Mullerian hormone) | Ovarian reserve — relevant for women of childbearing age |
Stress axis
| Test | What it reveals |
|—|—|
| 4-point salivary cortisol | Circadian pattern — essential for irritability and insomnia |
| DHEA/Cortisol ratio | Balance between resilience and burnout |
Thyroid (even more important for women)
| Test | What it reveals |
|—|—|
| TSH | Hashimoto's is 8x more common in women |
| Free T4 and free T3 | Free T3 deficiency causes fatigue, weight gain, and libido loss |
| Anti-TPO and Anti-thyroglobulin | Autoimmunity — present in up to 10% of women |
Metabolism and inflammation
| Test | What it reveals |
|—|—|
| Fasting insulin and HOMA-IR | Insulin resistance is prevalent in perimenopause |
| HbA1c | Metabolic risk screening |
| High-sensitivity CRP | Chronic inflammation worsens all hormonal symptoms |
| Homocysteine | Cardiovascular risk — especially relevant post-menopause |
Micronutrients
| Test | What it reveals |
|—|—|
| Vitamin D | Cofactor for estrogen, immunity, and mood |
| Ferritin | Deficiency is epidemic in women and causes brutal fatigue |
| RBC magnesium | Essential for sleep, mood, and 300+ reactions |
| Vitamin B12 and folate | Energy, neuroprotection, and methylation |
| Zinc and selenium | Thyroid cofactors and antioxidants |
To understand how the decline of these hormones affects intimacy: [Menopause and Loss of Libido: Why It Happens and What You Can Do About It](/en/menopause-loss-of-libido/).
How to Interpret Results: Normal Range vs. Optimal Range
Here is one of the biggest problems in conventional medicine applied to hormones: the laboratory reference range is statistical, not functional.
What does that mean?
The “normal” range is calculated based on the average of the population that visits that lab. This includes sedentary, overweight, stressed individuals with multiple chronic diseases. Being within “normal” can mean being as bad off as the majority.
Practical example:
The same applies to:
That is why having your labs interpreted through a functional lens makes all the difference. The same result that a conventional doctor ignores can be the diagnosis that changes your life — and your marriage.
> [CLINICAL CASE]
> Sarah and Michael, 44 and 48, married 19 years, Austin, TX (online consultation). They came as “one last attempt before divorce.” They had already done couples therapy for 2 years. Sarah felt permanently exhausted and without desire. Michael was irritable and distant. Labs revealed: Sarah had ferritin of 14 (brutal fatigue), TSH of 4.2 with positive anti-TPO (subclinical Hashimoto's), undetectable free testosterone, and vitamin D of 19. Michael had total testosterone of 285 ng/dL, nighttime cortisol 4x above optimal, HOMA-IR of 3.8 (insulin resistance), and RBC magnesium at the lower limit. After an individualized protocol for each — and joint quarterly follow-up — both reported significant improvement within 4 months. “It was not the marriage that was sick. It was us — biochemically.” They are still married. Still in follow-up.
> Names changed. Case based on a real patient with details modified to protect privacy.
When and How Often to Repeat the Tests
Hormonal investigation is not a one-time event — it is a process.
Recommended protocol:
| Timing | What to do |
|—|—|
| Initial evaluation | Complete panel (all tests listed above) |
| 30-60 days after starting protocol | Reassess the most dynamic markers (cortisol, insulin) |
| 90 days | Broad hormonal reassessment for protocol adjustment |
| 6 months | Consolidation of results and fine-tuning |
| Annual | Maintenance monitoring — especially after age 40 |
Important tip: have your labs drawn at the same lab, at the same time of day (preferably morning, fasting), so comparisons are valid.
To understand how dysregulated cortisol shows up in these tests and what to do about it: [High Cortisol and Irritability Symptoms: The Stress Hormone Ruining Your Marriage](/en/high-cortisol-irritability-symptoms/).
The Step-by-Step for Couples to Start Today
Investigating hormones together can feel intimidating. Here is a simple roadmap:
Step 1 — Have an open conversation. Share this article. Acknowledge that symptoms may have a biochemical cause. Take the blame off both your shoulders.
Step 2 — Find a functional or integrative medicine doctor. Not every physician interprets hormones through a functional lens. Look for practitioners who evaluate the optimal range, not just the reference range.
Step 3 — Get your labs done together. Literally. Schedule the same day, go to the lab together. This reinforces that it is a couple's project — not one person's “problem.”
Step 4 — Bring the results to the same practitioner. Integrated interpretation of both partners' labs allows identification of complementary patterns (e.g., he has high cortisol, she has low progesterone — both generating irritability).
Step 5 — Follow the protocol with mutual commitment. Changes in diet, sleep, and supplementation work better when the couple adheres together.
Step 6 — Reassess at 90 days. And celebrate the wins — including the small ones.
FAQ — Hormone Tests for Couples
1. Does insurance cover these tests?
The majority of tests listed are covered by most insurance plans when there is documented medical indication. Some, like 4-point salivary cortisol and RBC magnesium, may not be in the standard formulary and could require a special request or out-of-pocket payment.
2. Can I request these tests from my primary care doctor?
You can request them, but functional interpretation requires specific experience. A “normal” result on the report may represent a significant functional imbalance.
3. At what age should a couple start investigating hormones?
Ideally, starting at age 35 — or earlier if symptoms are present. Men with signs of early andropause and women in perimenopause benefit from early investigation.
4. Do the tests need to be done fasting?
Most hormonal and metabolic tests should be collected after an 8-12 hour fast, in the morning (between 7 AM and 9 AM), for best accuracy. Salivary cortisol follows its own collection protocol throughout the day.
5. What if only one partner wants to get tested?
Start with whoever is willing. Individual results already provide valuable insights. In most cases, when one partner visibly improves, the other becomes motivated to investigate as well.
You and your spouse deserve to know what is happening inside your bodies. Not guessing. Not assuming. Knowing. With data. With science. With a personalized action plan.
The checklist is here. The next step is yours.
👉 [Schedule your consultation at drjeancarlosmd.com](https://drjeancarlosmd.com/en/biochemical-divorce/)