boys are doing unnatural sexes like masturbation's. secondly the t v, cinemas. intern ate porn sites are now very prevalent  . early maturity leads to impotency.  the sex is the instinct desires of the all human and animal kingdom.food, celeb icy and sleep  are the triad foundation of human. sex is essential but in the limited  and in controlled way. now a day sex is converted into sexuality. so it is a disease . now a days impotency started at the age of 25 years to onwards. for this there are several factors early puberty ages are there. girls are becoming mother in the age of 12 or 13 years.teenagers are living hours to gather all unable to perform intercourse's and  discharges early and in peak life time they weep on their past misdeeds.being a physician every day we are facing these category diseases. so the future of the youth and nation is very alarming.due to this killings, rapes and murder rates increased.sex education is must not misuse of it but our children and teenagers are  inclined more. they will unable to satisfy each other.