The reason why 36 years old sex life short time is more, including physiological factors such as mood tension, depression and other physiological factors, pathological factors such as circumcision, penile, chronic prostatitis, urethritis and other pathological factors. 1. physiological factors: short sex life physiological factors are common mood too nervous, depression, anxiety, etc., in addition to contact with obscene things, patients, long time in the state of sexual excitement, more likely to appear short sex life. 2. Pathological factors: mostly seen in the long foreskin, penile, glans sensitivity is too high, easier to ejaculate; for chronic prostatitis, varicocele and other patients can lead to short sex life; urethritis, urethral mucosa and urethral orifice sensitivity is also higher, easier to cause ejaculation. All of the above conditions can lead to short sex life, the specific situation is recommended to go to the hospital, improve the auxiliary examination, in order to clarify the cause of the disease, the professional physician for specific conditions to give the appropriate treatment.