Decreased Muscle Mass: Testosterone levels start declining, leading to a gradual loss of muscle mass and strength. Hormonal Changes: Changes in hormone levels, including testosterone, can affect energy levels, libido, and mood. Reduced Bone Density: Bone density diminishes, increasing the risk of osteoporosis and fractures. Increased Risk of Health Issues: The likelihood of developing conditions like heart disease, high blood pressure, and diabetes rises with age.