«Two percent testosterone solution improves sex drive and energy levels in men with hypogonadism: Long - term treatment safe and effective, according to a new study.» (sciencedaily.com)
For men with hypogonadism, a condition in which the body does not produce enough testosterone, low sex drive and fatigue are common symptoms. (sciencedaily.com)
A study of 36 men with hypogonadism found that testosterone injection benefits bone density as well. (tctmed.com)