Understanding male hormone health
Frequently asked questions
What hormones should men test regularly?
What hormones should men test regularly?
Men should regularly test total and free testosterone, SHBG, LH, FSH, oestradiol, prolactin, DHEAS, cortisol, and thyroid function. Imbalances in any of these can significantly affect energy, body composition, mood, and sexual function.
What is a normal testosterone level for men?
What is a normal testosterone level for men?
Normal total testosterone in adult men ranges from approximately 10 to 35 nmol/L, though optimal ranges for symptoms and wellbeing may differ. Free testosterone is often more clinically meaningful and should be interpreted alongside symptoms and SHBG levels.
Can stress affect male hormone levels?
Can stress affect male hormone levels?
Yes significantly. Chronic stress elevates cortisol, which directly suppresses testosterone production. High cortisol also raises SHBG, further reducing free testosterone. Testing both cortisol and testosterone together gives the most accurate picture.
What is the difference between total and free testosterone?
What is the difference between total and free testosterone?
Total testosterone measures all testosterone in the blood including the portion bound to proteins. Free testosterone is the unbound, biologically active fraction. Men with normal total testosterone but high SHBG can have low free testosterone and experience symptoms of deficiency.