Since T ranges are so much lower, T deficiency is much more noticeable in the modern generation. That documentary was quite scary, because it is not just plastics but water contamination and excitotoxins in virtually every restaurant food that negate testosterone and ultimately lower it. I liked the part where he said that a group of reproductive scientists met and said that this was a clear sign of extinction coming very soon. In my educated opinion the American/European man will be done for in 2-3 generations. We have increased access to pornography which further exacerbates this early male menopause and now we have in vitro that people are resorting to which further lowers testosterone levels of the test tube babies for the rest of their life. This wasn't even brought up in the video but it is scary. We will have sexually dysfunctional males with low testosterone breeding and producing males with even low testosterone until eventually there is not enough energy to produce a child, let alone a male child. This is very real and in my opinion the governments are looking at this as a god send to their population control philosophy. This issue is so important and is hitting so fast that it is amazing nothing is being done yet. When women outnumber men 4 to 1 people might look for answers.