Prostate cancer is the most common type of cancer in men. In 2015, there are expected to be 220,800 new cases of prostate cancer in the United States. Prostate cancer is the second leading cause of cancer death in American men (lung cancer is by far the leading cancer killer).
A large population study suggests men should tread carefully when it comes to testosterone treatments as the therapies have been linked to an increased risk of cardiac problems. But questions remain whether the drug or behavior change is to blame.