The impact of tight fitting jeans was more on males due to anatomical reasons, as jeans leads to increase in temperature of the scrotum, whereas lower temperature was required for proper sperm viability, he said.

• 他说，低温有助于维持正常的精子生存能力，由于解剖结构的原因，紧身牛仔裤对男性生育力的影响更大，因为紧身牛仔裤可引起阴囊温度升高。