It is surprising to know that overweight can cause infertility in men just like for women. Despite accounting for other factors that could influence fertility, like age, smoking, alcohol intake, pesticide exposure and the wife's health, it has been found that infertility is on the high when the man’s body mass index is above normal. Excessive overweight reduces the sperm count, alters the shape and size of the sperm. And it is frightening to know that sperm's ability to reach the egg and fertilize it also becomes difficult. So better count on your calories…