[lurok]

Interesting analysis in Guardian

sperm-count-fall-is-it-real

Several studies have failed to find any sign of a decline. And one, in Italy, even found sperm counts on the rise in the past decade.

Add to this the fact that sperm counts will rise and fall in the same man over time, with concentrations affected by alcohol, drugs, smoking, obesity, abstention and even the changing seasons, and the difficulty becomes apparent.