What appears to be a fairly large study of sperm counts among men in North America, Europe, Australia and New Zealand over four decades has revealed a decline of more than 50 per cent. The lead author is Dr. Hagai Levine of the Hebrew University’s Hadassah Braun School of Public Health and Community Medicine in Jerusalem. This CBC story contains much reaction. Some sources hint at causes like smoking (although smoking has declined) weight, a lack of exercise and from one doctor, the presence of plastics as a source of female hormone compounds in the environment.
