Male fertility has halved in the past half century.

Male fertility has halved in the past half century. Between 1973 and 2018, male fertility worldwide declined by about 50%. Moreover, since the beginning of the new millennium, the figures have been falling twice as fast as before - by 2.64% annually. These conclusions were reached by Israeli scientists after a meta-analysis of 800 studies on male infertility. According to the World Health Organization, 10-15% of families in the West cannot have children due to the infertility of one of the spouses. Most of them lose their fertility at the age of 40-55.