Signs Men Infertile? Calculate Total brother!
If you wonder whether your partner is the Mr. Right, try to count how many brothers.
The man who has many male siblings are considered more productive. Researchers from the University of Sheffield believe that families with a number of the boys showed a lot of good fertility.
Investigators believe the parents with good fertility genes more likely to have boys and can pass it.
"We found a greater number of brothers, the men more fertile because sperm swim faster and faster. This is why a man is fertile," explained researcher Dr. Allan Pacey, told through Medicaldaily
