Men's hormonal health is a topic that has long been under-discussed and under-tested. While the hormonal changes of menopause are well recognised in women, the gradual hormonal decline that men experience — sometimes called andropause or late-onset hypogonadism — is equally real and equally impactful. Testosterone, DHEA, cortisol, thyroid hormones, and neurotransmitters all play critical roles in male vitality, and imbalances in any of these systems can profoundly affect quality of life.
The Role of Testosterone in Men's Health
Testosterone is the primary male sex hormone, produced mainly in the testes under the direction of LH (luteinising hormone) from the pituitary gland. It is responsible for:
- Muscle mass and strength
- Bone density
- Libido and sexual function
- Mood, motivation, and cognitive function
- Fat distribution and metabolic rate
- Red blood cell production
- Cardiovascular health
Testosterone peaks in the late teens and early 20s, then declines at approximately 1–2% per year from the age of 30. By their 40s and 50s, many men have testosterone levels significantly below their youthful peak — with real consequences for health and wellbeing.
Symptoms of Low Testosterone
- Persistent fatigue and low energy
- Reduced libido and sexual dysfunction
- Loss of muscle mass and increased body fat, particularly around the abdomen
- Mood changes — depression, irritability, low motivation
- Brain fog and poor concentration
- Reduced bone density
- Poor sleep quality
- Reduced exercise performance and recovery
Beyond Testosterone: The Full Male Hormonal Picture
Testosterone doesn't operate in isolation. DHEA is the precursor hormone from which testosterone (and oestrogen) are synthesised — and DHEA declines even more steeply with age than testosterone. Cortisol competes with testosterone for precursor hormones; chronic stress is one of the most powerful suppressors of male testosterone. Thyroid dysfunction mimics many symptoms of low testosterone. And neurotransmitter imbalances — particularly low dopamine and serotonin — compound the mood and motivation effects of hormonal decline.
This is why a comprehensive male hormonal assessment is far more informative than a single testosterone blood test.
Testing Men's Hormones at Home
Our Advanced Male Wellness Test is our most comprehensive male hormonal assessment, combining saliva hormone analysis with thyroid, metabolic, and cardiovascular markers — with a specialist doctor report included. For men whose symptoms suggest neurotransmitter involvement alongside hormonal imbalance, our Men All-In-One Test covers hormones, neurotransmitters, and heavy metals in a single comprehensive kit.
For men focused specifically on weight management and metabolic health, our Male Weight Management Profile Test assesses the hormones most directly linked to body composition — testosterone, DHEA, cortisol, thyroid markers, insulin, HbA1c, and Vitamin D3.
What Affects Male Testosterone Levels?
- Age: The primary driver of testosterone decline.
- Chronic stress: Cortisol directly suppresses testosterone production.
- Poor sleep: Testosterone is produced primarily during deep sleep; sleep deprivation rapidly lowers levels.
- Excess body fat: Adipose tissue converts testosterone to oestrogen via aromatase.
- Alcohol: Impairs testosterone synthesis and increases oestrogen.
- Nutritional deficiencies: Zinc, Vitamin D3, and magnesium are all essential for testosterone production.
- Sedentary lifestyle: Resistance training is one of the most effective natural testosterone boosters.
Saliva vs. Blood Testosterone Testing
Standard blood tests measure total testosterone — which includes testosterone bound to proteins (SHBG and albumin) that is metabolically inactive. Saliva testing measures free testosterone — the biologically active fraction that actually enters cells and drives physiological effects. For a true picture of testosterone status, free testosterone is the more clinically meaningful measurement. All Hormone Lab UK male hormone tests use LCMS saliva analysis for this reason.
Men's hormonal health deserves the same attention as women's. If you're not feeling like yourself, your hormones may be telling you why.