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.
How does alcohol cause erectile dysfunction? Most men will be familiar with the term brewer's droop, a temporary form of alcohol related impotence that occurs when the average drinker consumes one too many.. However long-term alcohol abuse affects the nervous system and impairs the impulses between the brain's pituitary gland and the genitals.