As men get older, their testosterone levels naturally decrease. Starting around age 30, a man’s testosterone level declines by an average annual rate of 1-2%. Testosterone deficiency, also known as low testosterone or “low T,” affects up to 13 million American men. Low T is defined as having a total testosterone level lower than 300 ng/dL and a free testosterone level of 5 ng/dL. Symptoms of the condition include an increase in weight (mostly due to body fat), a decrease in muscle mass, poor sleep, lack of energy and focus, and depression.… Read More...