<s>[INST] hi doctor i have done a lot of musterbation in my life since when i was just 13 years old. now i m 28 but still have the same habit, but i m now feeling pre-ejaculation problem.my stemna is just 1 or 2 minuts maximum. can u plz help me  how to get back the power and overcom pre-ejaculation ? afrahim from pakistan [/INST] Hi, Masturbation cannot be the case for your premature ejaculation. If it is 90% of males in the world will have premature ejaculation. To increase the duration or stamina - regular exercise and proper diet will help you. Other causes are 1.     Stressful work – night duties, 24-hour jobs 2.     Diabetes, hypertension, thyroid issue has an effect on Premature Ejaculation. keeping your Blood sugar, blood pressure and thyroid hormones under control will help you3.     On long term medication related to hypertension and anti-psychiatric medications 4.      Prone masturbation5.     Excess porn6.     Receiving less foreplay from partner or lack of knowledge regarding foreplay and female masturbation 7.     Having an affair giving you guilty feeling  8.     Lack of exercise, obesity Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. S.R.Raveendran, Sexologist </s>