Do you have low testosterone? If so, testosterone therapy may be the answer for you. Our testosterone quiz can help determine if you have low testosterone and could benefit from treatment. Testosterone is a hormone that plays a key role in many aspects of male health, including sex drive, muscle mass and strength, and bone density. Low testosterone can cause a number of symptoms, such as fatigue, reduced sex drive, depression, and difficulty building muscle. If you think you may have low testosterone levels, take our free testosterone quiz to find out more. We will email you your results based on the test score below.