Prostate, Hormones, and Heart: The Biomarkers Every Man Should Track

Standard men’s health testing gives you a testosterone number and maybe a PSA — isolated markers without context for what’s driving them or how they connect. The WHOOP Men’s Health Panel goes deeper with 77 biomarkers that cover the prostate triad, the full testosterone pathway, metabolic-hormonal connections, and the mineral cofactors behind hormone production, alongside the foundational health data that puts them in context. Dial deeper into what’s driving your testosterone, energy, and long-term health.

Most men’s health testing checks a handful of markers: maybe a total testosterone level if you ask for it, a PSA after 50, a lipid panel. Each result comes back as a single number with a reference range. In range means fine. Out of range means follow-up. There’s no context for what’s driving the number, no connection between systems, and no picture of how hormones, metabolism, and prostate health interact.

Women make 69% more preventive care visits than men. When men do get tested, the panels are narrow. Men develop coronary heart disease earlier than women, with CHD incidence roughly 3x higher and mortality roughly 5x higher in middle age.

Many of these men got tested. The testing just didn’t go deep enough. Targeted blood panels now measure the hormonal pathways, metabolic drivers, and prostate markers that standard testing skips.

Prostate health: why PSA alone falls short

PSA (prostate-specific antigen) is the standard prostate screening test. The American Urological Association recommends screening starting at 45 for average-risk men, and 40-45 for high-risk men. It’s a useful tool, but a single total PSA number can create as many questions as it answers.

The challenge is specificity. PSA rises in both benign conditions (BPH, prostatitis) and cancer, especially in the approximate range of 2.5-10 ng/mL where most elevated readings fall. A high total PSA often triggers anxiety, additional testing, and sometimes unnecessary biopsies.

The number that adds clarity is PSA % Free. PSA circulates in two forms: free (unbound) and complexed (bound to proteins). Cancer cells produce PSA that binds more readily to proteins, so men with prostate cancer tend to have a lower percentage of free PSA. A prospective multicenter trial published in JAMA demonstrated that percent free PSA significantly improves the specificity of PSA testing for differentiating prostate cancer from benign prostatic disease, particularly in the diagnostic gray zone of 4-10 ng/mL.

The three-part pattern (Total PSA, Free PSA, PSA % Free) turns a single anxious number into a decision-making tool. Total PSA tells you something is happening. The free-to-total ratio helps tell you whether it’s likely benign or worth investigating further.

Prostate cancer is rarely diagnosed before 40, but incidence climbs steadily from there. By ages 55-69, more than half of all cases are diagnosed. This is the window where a single total PSA number is most likely to land in that elevated range and most likely to benefit from the context that free and percent-free PSA provide.

The testosterone story your lab results aren’t telling

A standard testosterone test returns one number: total testosterone. If it’s in range, you’re told that you’re fine. If it’s low, the conversation usually jumps to TRT (testosterone replacement therapy). Either way, it can be easy to miss the full picture.

DHT (dihydrotestosterone) is where testosterone gets converted and expressed in target tissues. The enzyme 5-alpha-reductase converts testosterone to DHT in the prostate, skin, and hair follicles. DHT has roughly double the binding affinity to androgen receptors compared to testosterone, with a dissociation rate about 5x slower. In target tissues like the prostate, DHT levels can reach 10x higher than testosterone.

DHT matters for prostate health (it plays a strong role in both normal function and pathologic growth), hair loss (it causes follicle miniaturization in androgenic alopecia), and understanding how your body processes androgens. A man with normal testosterone but elevated DHT may reflect excessive 5-alpha-reductase activity. A man with normal testosterone but low DHT could have reduced conversion, which might explain symptoms that don’t match his testosterone number.

Testosterone and DHT together reveal the full androgenic picture. Either one alone is incomplete.

Prolactin is a key marker to consider when low testosterone doesn’t have an obvious explanation. Elevated prolactin suppresses GnRH secretion from the hypothalamus, which reduces LH and FSH, which can suppress testosterone production. That’s a cascade from pituitary to testes.

A man with low testosterone, decreased libido, or erectile dysfunction may have hyperprolactinemia as the root cause. Testosterone replacement alone won’t address a pituitary-driven problem. Prolactin testing identifies the mechanism so you and your doctor can intervene at the right point.

Prolactin is rarely tested in men because symptoms develop gradually, and by the time they’re obvious enough to prompt investigation, the condition has often been present for years.

If you’re considering TRT, understanding your full hormonal pathway first (DHT, prolactin, metabolic context) helps you and your doctor make a better decision.

The metabolic-hormonal connection

Is your low T actually a metabolic problem? Research shows leptin (a hormone secreted by fat tissue) is inversely associated with testosterone. When leptin is elevated, it can suppress testosterone production through the hypothalamic-pituitary axis.

More body fat means more leptin. More leptin is associated with suppression of testosterone. Lower testosterone promotes more fat deposition. The loop reinforces itself.

This means low T can be a metabolic symptom. If leptin is elevated, the intervention path looks different than if the issue is purely gonadal. Addressing body composition and metabolic health may do more for testosterone levels than treating the hormone directly.

Uric acid bridges metabolic and cardiovascular risk in a way that matters specifically for men. Men have higher baseline uric acid levels than women (estrogen has a uricosuric effect), making hyperuricemia more prevalent. Elevated uric acid is associated with metabolic syndrome, increased type 2 diabetes risk, and cardiovascular disease. When interpreted alongside hormonal and metabolic markers, uric acid helps distinguish temporary lifestyle effects from sustained metabolic patterns.

As a single marker, uric acid touches gout, cardiovascular disease, kidney function, hypertension, and metabolic syndrome. It connects systems rather than isolating them.

Together, leptin and uric acid reframe what “low T” means. When testosterone is low and these metabolic markers are elevated, the hormonal number may be downstream of a metabolic problem. Testing both sides changes the clinical conversation. The Men’s Health Panel includes both markers alongside your full hormonal pathway, so you can see whether low T is gonadal or metabolic.

The minerals behind hormone production

When the building blocks are depleted, hormone numbers can look worse than the underlying biology warrants. Three markers in this panel help distinguish between a true hormonal deficit and a nutritional one.

Zinc has a unique relationship with the prostate. Prostate tissue is one of the most zinc-dense tissues in the body, and in prostate cancer tissue, zinc levels are 60-80% lower. Zinc also plays a direct role in testosterone production: severe and moderate zinc deficiency is associated with hypogonadism in men, and supplementation improves testosterone in deficient individuals.

Inadequate zinc intake is common in the demographic that needs it most, older men, where prostate cancer incidence climbs, testosterone declines, and immune function weakens.

Magnesium is involved in more than 300 enzymatic reactions, and a large share of Americans consume less than the recommended amount. Subclinical magnesium deficiency is associated with hypertension, arrhythmias, atherosclerosis, and increased diabetes risk. For men, the connection to cardiovascular health is especially relevant given the earlier onset of coronary heart disease. Magnesium testing identifies a modifiable factor that connects to heart health, metabolic function, and muscle performance.

Free T4 (free thyroxine) measures the unbound portion of circulating thyroid hormone, adding important context to how thyroid function is assessed beyond TSH alone. Subclinical hypothyroidism (normal T4 with elevated TSH) affects 3-15% of the population. Thyroid dysfunction affects SHBG levels, which affects how much testosterone is bioavailable. A man presenting with fatigue, weight gain, or apparent low testosterone may have an underlying thyroid issue that a standard TSH screen wouldn’t fully characterize. When interpreted alongside TSH, Free T4 helps clarify patterns of thyroid function that may not be apparent from TSH alone.

What the WHOOP Men’s Health Panel includes

77 biomarkers. 10 unique to this panel. The prostate panel (PSA Total, PSA Free, PSA % Free) gives you the three-part pattern rather than a single screening number. DHT and prolactin map the hormonal pathway beyond total testosterone. Leptin, uric acid, and eAG capture the metabolic context that drives hormonal health. Zinc, magnesium, and Free T4 test the cofactors and thyroid function that underpin everything else.

The panel also includes the hormonal and metabolic foundation, Total Testosterone, Free Testosterone, SHBG, Estradiol, LH, and FSH (the endocrine baseline that DHT and prolactin build on), TSH (the thyroid screen that Free T4 deepens), hsCRP, cortisol, standard lipid panel, CBC, full metabolic panel, iron studies, and Vitamin D. You get the baseline covered and the depth added in one test.

Every result is reviewed by a licensed clinician. The panel’s biomarker selection was developed with WHOOP’s Medical Advisory Board, and all testing is exclusively powered by Quest® Diagnostics. No subscription or baseline test required. FSA/HSA eligible. Schedule a test at 2,000+ Quest® locations nationwide, right in the WHOOP app.

Frequently asked questions

What blood tests should men get beyond a standard panel? A standard panel might include total testosterone and PSA total, if you ask. A targeted men’s health panel adds PSA Free and % Free (for prostate context), DHT (how testosterone is converted), prolactin (pituitary-driven testosterone suppression), leptin and uric acid (metabolic drivers of hormonal health), zinc and magnesium (cofactors for testosterone production), and Free T4 (thyroid function). These markers connect the systems that standard testing evaluates in isolation.

What does PSA % Free mean? PSA circulates in two forms: free (unbound) and complexed (bound to proteins). Cancer cells produce PSA that binds more readily to proteins, so men with prostate cancer tend to have a lower percentage of free PSA. The three-part pattern (Total PSA, Free PSA, PSA % Free) adds diagnostic specificity that a single total PSA number lacks, especially in the approximate 2.5-10 ng/mL range where most elevated readings fall.

Can low testosterone be caused by metabolic problems? Yes. Leptin, a hormone secreted by fat tissue, is inversely associated with testosterone. When leptin is elevated, it can suppress testosterone production through the hypothalamic-pituitary axis. Addressing body composition and metabolic health may do more for testosterone levels than treating the hormone directly. A panel that tests both sides (hormonal and metabolic) changes the clinical conversation.

What is DHT and why does it matter? DHT (dihydrotestosterone) is a potent form of testosterone produced when the enzyme 5-alpha-reductase converts testosterone in target tissues like the prostate and skin. It has roughly double the binding affinity to androgen receptors. A man with normal testosterone but elevated DHT may reflect excessive conversion activity. A man with normal testosterone but low DHT could have reduced conversion, which might explain symptoms that don’t match his testosterone number. Testing both gives the full androgenic picture.

Want to understand what standard bloodwork misses across all five health domains? Read: What Your Doctor’s Bloodwork Misses.

WHOOP Advanced Labs includes Specialized Panels, the Comprehensive Health Panel for ongoing longitudinal tracking, and free blood work uploads. Choose the path that fits you. Explore Advanced Labs.

This data is not diagnostic and does not identify individuals; individual results vary.