Your basic hypothesis is inaccurate. Our stress filled lifeways leave us with high blood cortisol levels, and that steroid inhibits the production and release of the hypothalamic Master reproductive hormone, GNRH, which, in turn, impedes the production and release of FSH and LH from the pituitary gland. Massive human overpopulation is the culprit and Mother Nature has seen it all before. A vast biology literature supports and has previously reported this fact. Nature bats last.
The sperm and testosterone decline is most pronounced in some rural regions (Switzerland, American Midwest) where there is exposure to pesticides but no overpopulation nor density stress.
Your basic hypothesis is inaccurate. Our stress filled lifeways leave us with high blood cortisol levels, and that steroid inhibits the production and release of the hypothalamic Master reproductive hormone, GNRH, which, in turn, impedes the production and release of FSH and LH from the pituitary gland. Massive human overpopulation is the culprit and Mother Nature has seen it all before. A vast biology literature supports and has previously reported this fact. Nature bats last.
The sperm and testosterone decline is most pronounced in some rural regions (Switzerland, American Midwest) where there is exposure to pesticides but no overpopulation nor density stress.