Why is male fertility declining so drastically?

For 30 years, male sperm counts have been declining all around the world, particularly in Western countries. It’s been demonstrated over and over again by scientific studies. Indeed, research published by Oxford Academic in the Human Reproduction Update journal in 2017 looked at nearly 200 studies on the matter. It found that sperm counts in North America, Europe, Australia and New Zealand had plummeted by 59% from 1973 to 2011. What are the reasons behind this? What can men do …