There are many studies, stories and movies that have demonstrated that toxins can have detrimental effects on male hormones:
The documentary called The Disappearing Male is frightening. The documentary discusses the reason why sperm counts world wide have been cut in half and why sperm are now more deformed and damaged then ever before and testicular cancer has doubled in the last 20 years.
Man made chemicals are thought to be to blamed, and play havoc with sexual health. And these chemicals, are everywhere. We know of some like BPA and phalates….but there are more we are just starting to learn about. Some of these chemicals are more damaging to men.
And the most serious effects are to the unborn child.