And if the trend continues, we may very well reach a point where the human race is unable to reproduce itself.
Sperm concentration—the number of sperm per milliliter of semen—has dropped more than 50% among men in Western countries in just under 40 years.
The question of human fertility, and sperm counts in particular, is one with which Swan is well versed.
Men with excess phthalates in their bodies, for instance, will produce less testosterone and, as a result, fewer sperm.
I think that sperm counts are really low in many places in the world, and people should be very concerned.
And so he went back and he cleaned up his act, and then after a couple of months, his sperm count returned. »