your missing the point, it just doesnt take years off your life but can lower the quality of the rest of your life to shit. for example exogenous test shuts down the immune system= autoimmune disease, say you get MS in five years, your life is going to suck man, do you know how hard life is with a disease like that, or cancer, or metaboli syndrome. your banking that the only problems that will arise is a short life span, im telling you that your quality of life might go in the shitter, nothing is more important then health, when you lose it you will understand.