I believe that many people will be confused when they see this title. Does the sperm quality of men have something to do with his weight?A survey of modern scientific research shows that this is indeed the case.A new study announced at the European Human Reproductive and Embryment Conference held at Barcelona, Spain shows that obese men are more inferior than men with normal men.This means that the more obesity of men, the worse the reproductive ability, and even infertility.
The research team of Giliah-Shaya, the University of Aberdeen in the United Kingdom, analyzed the sperm of more than 5,000 men in Scotland.Men are divided into different groups.BMI is normal weight between 20 and 25, 25 ~ 29 is overweight, and 30 or above is obese.The results show that men in BMI at 20-25 have a higher level of normal sperm, while overweight and obese people not only have a small amount of semen (number of sperm), but also the number of normal sperm is not large.Obesity men have less than 60%of the less sperm, and the chance of abnormal sperm is also more than 40%.The overweight is about the same situation as the obese man.In the study, Shaye Bu and others excluded other factors that may affect sperm counts, such as smoking, drinking, abuse of drugs, and age, which confirmed that obesity did affect sperm count and sperm quality.
Why does obesity affect the number and quality of men's sperm?There are some theories and hypotheses now, and there are three of them that are more recognized.First, adipose tissue can affect sex hormone metabolism, which may prevent sperm production and sperm quality.Second, temperature may have a negative impact on sperm production.The normal body temperature of a person is about 37 ° C, and the best temperature generated by sperm is 2 ℃ lower than the normal temperature.Obesity men have more fat, so their body temperature is higher than normal people.The high temperature of the scrotum area will directly affect the sperm ability of the testicles, causing a reduction in sperm production; even if the number of sperm production is not affected, the sperm quality after generation will be affected.
Nevertheless, researchers still cannot confirm that obesity must cause infertility, which depends on other factors.For example, obese men marry normal women, and the fertility function of obese men will be compensated by the other party, so it may not cause infertility.However, if the obese man is combined with obese women, the obesity of the two will be superimposed and forms a magnifying effect, causing infertility.
In addition, obesity can cause diabetes or recessive diabetes. This disease will also cause damage to sperm and affect men's fertility.In this regard, other researchers' studies have proved.Cohen of Queen Bell Fhate's University?Marydis found that 40 men who were not overweight but had diabetes found that due to diabetes, the patient's blood in the blood was high in blood, which damaged the DNA in their sperm.They found that the chance of sperm damage to people with diabetes was twice as many men who did not have normal men with diabetes.
(Editor in charge: Internship Liu Suqiong)
