Reading Time: < 1 minuteIntroduction Testosterone, the cornerstone androgen in male physiology, plays a pivotal role in spermatogenesis, sexual function, and overall reproductive health. In recent decades, American males have faced a concerning rise in testosterone deficiency, or hypogonadism, with prevalence rates climbing to approximately 40% in men over 45 years old, according to data from the National Health and Nutrition Examination Survey (NHANES). This epidemic, exacerbated by obesity, sedentary lifestyles, endocrine disruptors, and aging demographics, profoundly impacts fertility. Semen analysis remains the gold standard for evaluating sperm parameters, revealing correlations between low serum testosterone (total T < 300 ng/dL) and diminished semen quality. … Continue reading →