Study Reveals Nearly 60% Drop in Male Fertility Since 1970 in the U.S., Europe and Australia
July 25, 2017
Humans could face extinction if sperm counts continue to drop as fast as they have done in the last four decades in Western countries, a study warns.
Researchers claim the Western lifestyle has more than halved the sperm count of men in the US, Europe and Australia since the 1970s in a new study published by Human Reproduction Update.
Sperm count is the best measure of male fertility, and lead author Dr Hagai Levine said the findings are an ‘urgent wake-up call’ to investigate lifestyle factors, chemicals and environment that could cause the human species to go extinct.
‘If we do not make a drastic change to how we live and the chemicals we are exposed to I am worried about the future,’ he told Daily Mail Online.
‘I think the data serves as a wake up call, because I am personally worried about that [human extinction] if we do not address current environmental issues.’
Researchers at Hebrew University-Hadassah Braun School of Public Health and Community Medicine and the Icahn School of Medicine at Mount Sinai looked at 185 studies collected between 1973 and 2011 regarding sperm count and concentration in men from North America, Europe, Australia and New Zealand.
They found 59.3 percent average decline in total sperm count and a 52.4 percent average decline in sperm concentration among these men.
The men researched in those studies were not chosen for the studies based on their fertility status.