Testosterone lowers life expectancy, increases the risk of heart disease, and is a factor in prostate cancer. That’s not a “side-effect” of it though. Be caref

Testosterone lowers life expectancy, increases the risk of heart disease, and is a factor in prostate cancer. That’s not a “side-effect” of it though. Be careful about attributing causation. The effects of testosterone bring about the conditions that lead to these problems. The same goes for estrogen: women develop breasts as a result of increased levels of estrogen. The increased cellular activity in the breast cells over many decades leads to an increased risk of cancer. It is because the breasts grow that cancer rates greatly increase; they are inseparable to some degree.