A US research shows that a total of more than 5 hours of cycling for bicycles may have a negative impact on the number and quality of male sperm.
2,200 men participated in the investigation.Each of them provides a semen sample and states daily health and movement.After eliminating other factors such as nutritional level, weight, blood pressure, and underwear style, the researchers concluded that men who have accumulated a total of more than 5 hours per week over 5 hours compared to other men, the number of sperm and sperm activity has decreased.
Data show that among the men who lack exercise, 23 % of the sperm sperm are low; this value has risen to 31 % among the "cycling men" groups of more than 5 hours a week.In addition, 40 % of the "cycling men" sperm activity is insufficient, and it is also higher than that of men who do not exercise.
Laura Wais, an associate professor at the University of Boston, who guided this research, said that the scrotal injury or the heating of the scrotum or the increase in the health of the bicycle and the decline in sperm health.
This study also shows that compared with less exercise, men who often exercise and high -intensity exercise are low in terms of sperm and sperm vitality.
When Reuters explained the research purpose to Reuters reporters, the previous research on competitors showed that bicycle movements had an impact on the quality of urinary systems and semen. "But in daily exercise men, we are not sure if we can find this connection."
However, Wans acknowledged that all men who received the investigation came from male clinics. The results of the investigation may not be universal, and the final result still needs to obtain more research certification.
(Editor in charge: Internship Liu Suqiong)
