masturbation is normal and not harmful. it does not cause physical problems or sexual problems. masturbation does not cause hair fall. both are due to the effect of testosterone. in boys of young age the effect of testosterone is high which is normal and cause desire to masturbate. hair fall may be due to low vitamin or scalp infection or high testosterone. frequent sex is not harmful. you can do it daily. no you do not have premature ejaculation. ejaculation in less than one minute is pe. she can be satisfied before sex by finger or oral sex. it is better to pull the foreskin before insertion. if you have done oral sex for 8 months without any problem then no further issue. anal sex can be done but regular may cause tear in the anus and a condom should be used. for further doubts consult a sexologist online --><link>
is masturbation a harmful act?