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.
From my research on alcohol and fertility, Iâve learned that timing your intercourse to increase the chances of getting pregnant is more effective than not drinking an occasional glass of wine or other alcoholic beverage.lcohol and fertility can be connected before a man is born â and drinking affects getting pregnant for future generations. Marijuana use affects male fertility. Young men who use cannabis may be putting their fertility at risk, because marijuana affects the size and shape of sperm.