Interesting facts about impotence
Modern medicine treats more than 95% of cases of sexual impotence in men.

Only 20% of cases of impotence is due to psychogenic causes. The reasons of the remaining 80% of cases – are problems with various organs and systems of the body.
Impotence occurs not only in the old age. According to the statistics, the problem of impotence concerns of 21% of the representatives of the stronger sex aged 20-30 years, 27% aged 30-40 years, 48% aged 40-50 years and 53% aged 50 and over.
Erectile dysfunction is not such rare disease. 52% of men over forty years old can not always get good erection. World total amount is about 35% of male persons suffering from moderate or severe forms of sexual impotence.
Not regular sexual life (including cases due to impotence) can lead to stagnant of prostatitis, lower vitality, pain in lower abdomen, depression and other unpleasant phenomena.
Cycling may increase the risk of erectile dysfunction’s development.
Heavy smokers have erectile dysfunction in 40% of cases more than non-smokers.
Every man at least once in his life had the problems with erection.
People engaged in mental work have problems with sexual function 70% more than those who works in the industrial sphere.
According to some forecasts within the next 25 years the number of men suffering from impotence may be increased twicely.
There are more than 155 million of the men suffered from impotence.
Scandinavians have the less risk to have such disease as impotence . According to opinion polls, over 65% of Finns in the age of forty years never had problems with erection.
Only 13% of men suffering from impotence seek for medical help. And 71% of patients with disorders of erection interrupt treatment when they see the first positive results.
Chronic use of alcohol may cause impotence.
Overweight may indirectly influence the potency of the men.
also…from what i know, most cases are based on psychological issues, not medical ones
i think the most cases of erectile dysfunction are caused by psychological reasons only in young age