Andropause: Low Testosterone in Men

Replacing testosterone is sometimes the right answer. More often it's part of the answer — and addressing what's driving the decline matters as much as the replacement itself.

What patients tell us

“I'm in my 40s. My energy is gone, my workouts don't produce results, I've put on weight in my middle, my libido is low, my mood is shifting, and I just don't feel like myself. My doctor checked my testosterone and said it was 'low normal,' which means he won't treat it. I know something is off.”

What andropause actually is

Unlike menopause, the male hormonal transition is gradual. Testosterone levels decline by roughly 1-2% per year starting in the late 20s to 30s, accelerating in some men with age, comorbidities, and other contributors. The symptomatic clinical syndrome of male hypogonadism develops in a substantial percentage of men as testosterone levels drop relative to their individual baseline.

The clinical syndrome includes reduced energy and fatigue; loss of muscle mass and strength; central weight gain; reduced libido and erectile function; mood changes; sleep disruption; cognitive symptoms; and a sense of being 'not myself.' The diagnostic challenge is that laboratory 'normal' ranges don't capture optimal function — a man whose testosterone has dropped from 800 to 350 ng/dL is technically within range but has lost more than half his individual hormonal level.

What drives accelerated testosterone decline

Several specific contributors drive testosterone decline beyond the gradual age-related pattern. Sleep apnea is one of the most consistent and underappreciated — obstructive sleep apnea substantially suppresses testosterone, and the decline worsens the apnea in a self-reinforcing cycle. Metabolic dysfunction and insulin resistance suppress testosterone through multiple mechanisms. Environmental endocrine disruptors interfere with male hormonal signaling. Chronic inflammation and chronic infections affect testosterone production. Specific medications affect testosterone. Nutrient cofactors and stress and HPA axis dysregulation matter.

How iHeal evaluates low testosterone

The evaluation begins with comprehensive hormonal assessment — total testosterone, free testosterone, estradiol, DHEA-S, LH, FSH, and prolactin — which characterizes whether the issue is primary or secondary, whether aromatization is excessive, and whether other pituitary issues contribute. The broader evaluation considers metabolic status, thyroid function, nutrient cofactors, inflammatory markers, sleep apnea screening, and the 5M framework. Clinical correlation matters — the patient's clinical picture, not just laboratory numbers, guides the decision about intervention.

How treatment proceeds

The approach considers two questions in sequence. First, what's driving the decline that can be addressed? Sleep apnea evaluation and treatment when present; metabolic and lifestyle intervention; environmental exposure reduction; nutrient optimization; stress and sleep work; addressing chronic inflammatory drivers. Many men experience substantial testosterone improvement with comprehensive intervention before any hormone replacement is considered.

Second, when hormone replacement is appropriate, what form and what monitoring? Testosterone replacement therapy is available in multiple delivery forms. Monitoring includes periodic measurement of testosterone, estradiol, hematocrit, PSA, and clinical response. TRT carries genuine considerations — fertility is affected, cardiovascular considerations require attention — and the decision to initiate and the monitoring throughout require clinical relationship and ongoing assessment.

Dr. Matthew Everett, MD

Pro Tip · From Dr. Everett

Matthew Everett, MDEnvironmental Medicine · IFMCP

The evaluation begins with comprehensive hormonal assessment — total testosterone, free testosterone, estradiol, DHEA-S, LH, FSH, and prolactin — which characterizes whether the issue is primary or secondary, whether aromatization is excessive, and whether other pituitary issues contribute. The broader evaluation considers metabolic status, thyroid function, nutrient cofactors, inflammatory markers, sleep apnea screening, and the 5M framework. Clinical correlation matters — the patient's clinical picture, not just laboratory numbers, guides the decision about intervention.

Sources & Further Reading

Concerned this applies to you?

A consultation is where we figure out whether andropause is actually contributing to your symptoms — and what to do about it.

On This Page

Andropause: Low Testosterone in Men

Replacing testosterone is sometimes the right answer. More often it's part of the answer — and addressing what's driving the decline matters as much as the replacement itself.

What patients tell us

“I'm in my 40s. My energy is gone, my workouts don't produce results, I've put on weight in my middle, my libido is low, my mood is shifting, and I just don't feel like myself. My doctor checked my testosterone and said it was 'low normal,' which means he won't treat it. I know something is off.”

What andropause actually is

Unlike menopause, the male hormonal transition is gradual. Testosterone levels decline by roughly 1-2% per year starting in the late 20s to 30s, accelerating in some men with age, comorbidities, and other contributors. The symptomatic clinical syndrome of male hypogonadism develops in a substantial percentage of men as testosterone levels drop relative to their individual baseline.

The clinical syndrome includes reduced energy and fatigue; loss of muscle mass and strength; central weight gain; reduced libido and erectile function; mood changes; sleep disruption; cognitive symptoms; and a sense of being 'not myself.' The diagnostic challenge is that laboratory 'normal' ranges don't capture optimal function — a man whose testosterone has dropped from 800 to 350 ng/dL is technically within range but has lost more than half his individual hormonal level.

What drives accelerated testosterone decline

Several specific contributors drive testosterone decline beyond the gradual age-related pattern. Sleep apnea is one of the most consistent and underappreciated — obstructive sleep apnea substantially suppresses testosterone, and the decline worsens the apnea in a self-reinforcing cycle. Metabolic dysfunction and insulin resistance suppress testosterone through multiple mechanisms. Environmental endocrine disruptors interfere with male hormonal signaling. Chronic inflammation and chronic infections affect testosterone production. Specific medications affect testosterone. Nutrient cofactors and stress and HPA axis dysregulation matter.

How iHeal evaluates low testosterone

The evaluation begins with comprehensive hormonal assessment — total testosterone, free testosterone, estradiol, DHEA-S, LH, FSH, and prolactin — which characterizes whether the issue is primary or secondary, whether aromatization is excessive, and whether other pituitary issues contribute. The broader evaluation considers metabolic status, thyroid function, nutrient cofactors, inflammatory markers, sleep apnea screening, and the 5M framework. Clinical correlation matters — the patient's clinical picture, not just laboratory numbers, guides the decision about intervention.

How treatment proceeds

The approach considers two questions in sequence. First, what's driving the decline that can be addressed? Sleep apnea evaluation and treatment when present; metabolic and lifestyle intervention; environmental exposure reduction; nutrient optimization; stress and sleep work; addressing chronic inflammatory drivers. Many men experience substantial testosterone improvement with comprehensive intervention before any hormone replacement is considered.

Second, when hormone replacement is appropriate, what form and what monitoring? Testosterone replacement therapy is available in multiple delivery forms. Monitoring includes periodic measurement of testosterone, estradiol, hematocrit, PSA, and clinical response. TRT carries genuine considerations — fertility is affected, cardiovascular considerations require attention — and the decision to initiate and the monitoring throughout require clinical relationship and ongoing assessment.

Dr. Matthew Everett, MD

Pro Tip · From Dr. Everett

Matthew Everett, MDEnvironmental Medicine · IFMCP

The evaluation begins with comprehensive hormonal assessment — total testosterone, free testosterone, estradiol, DHEA-S, LH, FSH, and prolactin — which characterizes whether the issue is primary or secondary, whether aromatization is excessive, and whether other pituitary issues contribute. The broader evaluation considers metabolic status, thyroid function, nutrient cofactors, inflammatory markers, sleep apnea screening, and the 5M framework. Clinical correlation matters — the patient's clinical picture, not just laboratory numbers, guides the decision about intervention.

Sources & Further Reading

Concerned this applies to you?

A consultation is where we figure out whether andropause is actually contributing to your symptoms — and what to do about it.

On This Page