
What Are Normal Testosterone Levels? If you are a man and want to know what are normal testosterone levels, you’re not alone. The majority of men have normal testosterone levels. It peaks around the age of 20 and continues to drop by three to ten percent a decade thereafter. During adolescence, testosterone levels are typically in the 700-800 nanograms per deciliter range. Testosterone levels tend to increase with age, but the range is still significantly… Read More »What Are Normal Testosterone Levels?