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testosterone levels
Also known as: testosterone serum levels
Facts (10)
Sources
How Testosterone Changes Affect Men's Health as You Age columbiadoctors.org Dec 16, 2025 7 facts
claimThe experience of clinically meaningful symptoms during andropause is not universal and depends on factors including baseline testosterone levels, overall health, underlying medical conditions, medications, and sleep quality.
measurementTestosterone levels in males typically decline at a rate of approximately 1% to 2% per year.
claimAndropause, also known as male menopause, is characterized by a gradual, age-related decline in testosterone levels in men, rather than the complete cessation of hormone production seen in female menopause.
claimTestosterone replacement therapy (TRT) can be an appropriate treatment for men who have documented low testosterone levels and bothersome symptoms that have not responded to lifestyle interventions.
claimDecreased energy in men can create a cycle where fatigue prevents exercise, leading to further muscle loss and weight gain, which ultimately decreases testosterone levels.
claimA man may have testosterone levels within the 'normal range' but still be symptomatic if that level is significantly lower than his personal baseline.
measurementMost men begin to experience a decline in testosterone levels around age 40, with many men observing more noticeable symptoms by age 50 to 55.
Understanding Male Hormonal Changes: A Complete Guide (2025) coremedicalwellness.com Oct 21, 2025 1 fact
measurementLosing 5-10% of body weight can significantly improve testosterone levels and overall hormonal balance in overweight or obese men.
Andropause Explained: Why Men 40+ Should Talk About Hormones ... health.stonybrookmedicine.edu Nov 12, 2025 1 fact
procedureBloodwork for andropause diagnosis is used to measure testosterone levels and check for other hormone imbalances that might explain symptoms.
Unknown source 1 fact
referenceJudd H.L. and Yen S.S. published a study in 1973 in the Journal of Clinical Endocrinology & Metabolism titled 'Serum androstenedione and testosterone levels during the menstrual cycle'.