Schistosomiasis (bilharziasis) is a major human disease caused by three species of the genus Schistosoma, known collectively as blood flukes. Africa and western Asia (e.g., Iran, Iraq) are endemic centres for S. haematobium; S. mansoni also is found in these areas, as well as inâ¦
How Alcohol Damages Sperm. Alcohol can reduce the quantity of sperm a man produces (his sperm count) and the quality of that sperm. One way in which alcohol does this is by preventing the body from absorbing zinc in the normal way. Zinc is found in high quantities in sperm.
Next story in Men's health Sauna visits may lower sperm count. A small new study adds to growing concerns that recreational marijuana use may lead to testicular cancer in young men. Some blunt advice for the young, male fans of marijuana: You may want to kill that joint and clutch your crotch -- self-check style, that is.