NHK Documentary S2018E30 - Sperm Crisis

Something abnormal is happening inside men's bodies: sperm is in crisis, with low counts, near-zero motility, and DNA damage, all of which are crucial to fertility. The trend seems to be universal. The World Health Organization says that in around half of the cases of infertility, it is the man who is responsible. We took a multi-faceted look into this sperm crisis facing the world and unearthed some hitherto unknown facts.