For sexual activity, I personally believe that three points of view must be established: 1. Sexual activity is a natural process. Therefore, to relax and enjoy the whole process happily, rather than focus on the state of the genitals only. 2, sexual activity must be mutual cooperation between men and women to complete. Sexual behavior only men and women collaborate to achieve the peak state of sexual well-being. 3, sexual activity does not have a fixed pattern of behavior, no time and intensity of the unified standard, only the individual feeling is the most important. With this view, in my understanding, there may be sexual dysfunction, but there is no premature ejaculation. In other words, as long as one can get an erection, premature ejaculation is not a difficult problem to solve. Premature ejaculation, as it is often called nowadays, is actually a common and completely curable disease. However, its treatment is advisable to combine behavioral treatment with medication, rather than relying solely on drugs. If you are worried about this kind of problem, don’t avoid the disease and don’t believe in the false advertisements that are everywhere, but go to a regular hospital for treatment.