infertility

this is in large part because of xenoestrogens in the drinking water supplies, which is becoming more and more prevalent.

http://www.huffingtonpost.com/2012/12/05/french-men-sperm-production_n_2243347.html

the bbc did a report called "assault on the male" about this problem around 20 years ago.

it is a good reason to get a good water filter.