Testosterone deficiency increases the risk for heart attack, stroke, cognitive dysfunction, sarcopenia (muscle wasting), obesity, anemia, fatigue, depression, inflammation, cancer, diabetes, metabolic syndrome, irritability, and sexual dysfunction (e.g., decreased libido, erectile dysfunction, reduced orgasm intensity). Many men suffering from low testosterone will report a loss of competitive edge, musculoskeletal stiffness and pain, diminished ability to participate in athletics/sports, and poor work performance. Men see a decline in testosterone at 30 years old, but it is not uncommon for some men to have symptoms of low testosterone as early as their 20’s!