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He had the data to prove it. The sperm counts of men in the United States and 20 other industrialized countries have been falling since 1942 at a rate of roughly 1% per year in healthy males. The average northern European sperm count in the 1940s was more than 100 million sperm per milliliter (million/ml) of ejaculate. In 2008? "The sperm counts of the majority of 20 year old European men are now so low that we may be close to the crucial tipping point of 40 million per milliliter spermatozoa ... we must face the possibility of more infertile couples and lower fertility rates in the future." In Denmark, more than 40% of men have already dropped below the 40 million/ml threshold and entered "sub-fertility." The research is, as always, controversial. Some studies con rm the trend, while other studies contradict the ndings, and we all end up more confused than before. To sidestep the bickering, I tracked my sperm count and quality over 18 months and looked
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