Washington, March 26 : While it is thought that men remain fertile throughout life as compared to women, Swedish researchers have now shown that a fertilising sperm can get help from the egg to rejuvenate.
Researchers at the Sahlgrenska Academy, University of Gothenburg, say that their finding is an important step towards future stem cell therapy.
The researchers highlight the fact that the risk of chromosomal abnormalities in the foetus is highly correlated to the age of the mother, but is nearly independent of the age of the father.
According to them, one possible explanation is that egg cells have a unique ability to reset the age of a sperm.