There are many ways to improve male virility, one of way is by taking drugs. But taking drugs are not always healthy. One study found that well-known anti-impotence, Viagra have adverse effects on male fertility.
Viagra was found can threaten male fertility because it reduces the ability of sperm to fertilize an egg. Before arrive to this conclusion, researchers from Queen's University Belfast conduct two experiments to determine what the effect of viagra on sperm cells.
In the first study, human sperm samples flushed with dilute Viagra like blood concentration after taking one pill of Viagra 100 mg. Researchers found that although sperm become more active, the sperm were damaged in the head (acrosome). Acrosome contains enzymes that help break down membrane around the egg, so the sperm can be easily enter and fertilization occurs.
