A report on sexology research pointed out that 70% of men admitted that sometimes they refuse their wives because they were afraid that they couldn't perform well enough. Why are today's men increasingly anxious about sex? Experts explained that it is because, just as in life we are accustomed to place expectations and high hopes on men, so too do we overestimate his endurance and confidence in the bedroom, assuming that he is always a winner in bed. In fact, while sex is considered by women as a way of intimacy, for men it represents male vigor and essence. Therefore, performance in bed and sexual ability not only affect his overall state of life, but also become his most secret psychological concern.