Testosterone gives a man many of his male characteristics: big and strong muscles, a healthy sexual appetite, high energy levels, etc. But sagging testosterone levels cause a variety of symptoms that can reduce the quality of life for many older men. Testosterone therapy raises hormone levels to therapeutic levels to relieve these symptoms and restore quality of life. Topical testosterone, which is applied to the skin rather than taken internally, is one of the easiest and most common modes of delivery.
Testosterone production declines naturally in the aging male body. The Cleveland Clinic says that 20% of men older than 60 years and 30% to 40% of those over 80 years have lower testosterone levels than younger men. Some medical disorders, such as stressful illnesses, surgery, heart attack, and cancer, can hasten this process and cause more serious testosterone deficiencies in some men.