Selcitra

New research at the University of California in the USA shoes that as men age, the quality of their sperm deteriorates, marking it more likely they will have trouble becoming fathers and increasing the possibility of having a child with dwarfism. Since 1980, the researchers said, birth rates in the UAS have increased 40 percent for men aged 35 to 49, while there has been a decline in births involving men under 30. The study, which looked at 97 men aged 22 to 80, found that as men aged they experienced lower sperm count, less active sperm, and increased fragmentation of DNA.