risk of infertility | scienceinfo.net

Where is male sperm the weakest? Please say that in this country full of surprises!
A country famous for being rich and worth living again has a sad ending in research in Europe.
People are at risk of extinction because of the risk of infertility increases by 60%.
Currently, the world population is 7 billion people. We are one of the largest races in the world, so it is hard to imagine how humanity can face the risk of extinction.