Both men and women with excess weight do not please eyes. Those people who suffer from fatness are amenable to various diseases. But men’s excess weight is also one of the key factors that can lead to male sterility. Such conclusions were made by American scientists.
It was proved experimentally that there were less viable sperm cells in the organism of men who suffer from fatness.

The researchers conducted the study tested samples of sperm taken from fifty two male volunteers with different body weight. It was determined that those men whose body-weight index was less than 25 had at least 18.8 millions of viable sperm cells in each ejaculation. Those men whose body-weight index was less than 35 had a number of viable sperm cells reducing to 3.6 millions. Those men who suffered from fatness had only about 700 thousand viable sperm cells. The last rate is a boundary value for male sterility. As ovum fertilization needs at least 3.7 millions of viable sperm cells to be successful.

Scientists also mind why fatness has a negative influence on the viability of sperm cells. Nowadays medical opinion still varies on the issue. One part of researchers consider it to concern with hormonal disbalance others are fully confident that the problem is in considerable depot fat in the groin range (the normal temperature of testicles should not exceed 37 degrees on Celsius).

According to the Clinic of artificial fertilization in Alabama, after the artificial fertilization the birth rate of alive children between those women whose body- weight index is less than 27 (the normal weight) makes 44,7 % on one implantation of an embryo whereas it reduces to 27 % between those women whose body-weight index is more than 27.