Both my father and his brother, my uncle, have prostate cancer. That means I've got a better than average chance of developing it. Another uncle (not a blood relative) died from it last year. I know prostate cancer generally isn't life-threatening, and that far more men die with prostate cancer than from prostate cancer, but I've had my fill of cancer and I don't want any increased risk. One side effect of testosterone supplements is an increased chance of prostate cancer. I'd love the benefits of supplements now at age 55, but I don't want to be dealing with cancer treatments at 75 if I can avoid it.