On hot summer days, people always make sufficient efforts to prevent heatstroke and cool down. But many men overlook one thing: cooling the scrotum. A number of surveys in the United States have shown that modern men are confined to a narrow space for a long time due to sitting still, which makes it difficult to breathe. As a result, their own temperature will rise, affecting sperm production. At the same time, infertility, which has caused many young men in Europe to talk about color change, is also closely related to their favorite fashionable tights. Tight, airtight underwear can also cause problems such as scrotal eczema.
You should know that the scrotal skin is very sensitive to external temperature. When the temperature is low, the smooth muscle of the scrotal sarcolemma and the levator muscle contract, raising the position of the testicles, and the scrotal skin will contract into dense folds, which will shrink back to the perineum to prevent heat dissipation, which helps to keep warm. On the contrary, when the external temperature rises, the smooth muscle and levator muscle relax, and the testicles will drop and leave the body. The scrotal skin also relaxes accordingly, increasing the heat dissipation area, which is conducive to local heat dissipation. This is how the scrotum regulates the temperature inside the scrotum.
Don't underestimate this ability of the scrotum, it is too important for humans to reproduce. Because temperature has a significant impact on testicular spermatogenesis. The temperature inside the scrotum is about 2 ° C lower than the body temperature, which is the most suitable temperature for spermatogenesis; "If the temperature is too high, spermatogenesis will be impaired or even completely stopped, and testosterone secretion will also decrease. These changes may lead to infertility or sexual dysfunction in men.".
Therefore, in summer, men should pay particular attention to taking care of the scrotum, which can be summarized as "two more and two less": more activities, more opportunities for the scrotum to dissipate heat; Less sitting, less wearing tight underwear. Specifically, it can be divided into the following aspects: avoid prolonged exposure to high temperatures, and try not to wear jeans; It is recommended that men take off their outer pants and wear loose, lightweight, breathable cotton underwear after returning home; Do not sleep on your stomach to avoid squeezing the scrotum. If conditions permit, you can sleep naked; Take less saunas or hot baths; When driving or cycling, take a break every hour.