<s>[INST] I am 26 year old single male,having erection problems.I have no medical conditions.Although I haven't undergone diabetes or cardiology test for over two years.I don't have morning erections.Used to excessively masturbate while watchingInternet porn regularly.I smoke moderately and drink on weekends. [/INST] Hi,You reported about lack of morning erection. I suggest quitting smoking and drinking for the best interest of your health. Smoking narrows the blood vessels and drinking damages your testicles hence hormone production.Masturbation has nothing to do with lack of erection. Go for check up with urologist for finding the cause and effective treatment of lack of erection.Hope I have answered your query. Let me know if I can assist you further. Regards,Dr. Chintan Raval </s>