The heavy weight body tended to have fewer sperm if compared with the man with the normal weight. This results of the study was released in the journal of Fertility and Sterility.
"There were strong relations between the heavy weight as well as obesity and the sperm change parameter," said the leader of this research, Dr Ahmad O Hammoud from the Utah University, Salt Lake City, the USA.
The obesity have the potentiality damaged of the man fertility, said the researchers, whereas the increase in excessive fat could reduce the production of testosterone and increased the production of oestrogen in the man's body.
To study how the index of the body mass affect the quality of sperm, they researched 390 men who underwent the maintenance of the fertility with their couple for the period two years.
Totalling 24% the man had heavy normal, whereas 43% had the weight surplus, and 33% obesity. From this research was found, the fat man only had a third of the weighing number of the man's sperm with normal body. "Apart from the quantity, there was the possibility that the weight and the pile of fat could be affect in the sperm quality" said Hammoud. (*/Xinhua/X-8)
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