A new research by Fertility and Sterility founds that men who use their laptop in their laps could be risking their fertility. Because laptop will overheating their male parts in 10 minutes thus may be damaging their sperm.
Other research also shown that the warming of scrotum more than 1.8 degrees is enough to damage sperm. And that research proved that after one hour, the 29 subjects working with laptops on their laps had raised the temperature in their testicles by more than 4 degrees.
However, this is not proof that laptops definitely leads to infertility among men.