The effects of aging begin much earlier than most men realize. Testosterone levels start to drop at a slow and steady rate in a man’s late twenties and continue to decline well into his golden years. This decline becomes more evident in middle-age when some men experience what has become known as andropause, or “male menopause.” This condition of hormone imbalance in men is characterized by a number of distressing symptoms, such as fatigue, muscle loss, increased body fat, sleeplessness, night sweats, irritability, depression and various forms of sexual dysfunction, like low libido and erectile dysfunction.