FT Edit presents: Global sperm counts are falling. This scientist believes she knows why
manbetx app苹果 精子数量下降，科学家莎娜·斯旺知道原因

Shanna Swan is a scientist who has spent decades chasing a mystery: why global sperm counts have seemingly dropped significantly since the 1930s. At its heart, this story is simply a brilliant yarn. It has got all the elements of a Hollywood movie.
自20世纪30年代以来manbetx app苹果 精子数量大幅下降，科学家莎娜·斯旺花费几十年探索这个谜团，终于得出答案。一起来听听这个如好莱坞电影般妙不可言的故事。