I would agree that men’s testosterone levels are falling. My 33 year old son has said as much. I think it’s due to a combination of things, like soy additives in food products, hormones given to cows to make them lactate even when they don’t have a calf to nurse, not to mention all the female hormones from birth control pills that are weeweeing into the water system. Why some women seem to have higher levels of testosterone makes me wonder if they aren’t taking it as a supplement. Something just ain’t right, whatever the reason.