Malefactor due to the rampant use of herbicides, men in rural areas have lower sperm counts than their urban peers. This is the finding of a recent follow-up study conducted by a researcher from the University of Missouri-Columbia, usa. Shanna Swan, a professor of family and community medicine, had announced in November 2002 that fertile men in rural areas of the us have lower sperm counts and less vigorous semen than men in urban areas.

Through her recent study, Swan has linked the problem with three chemicals