Also see this recent study: Sexual dysfunctions among young men: preval... [J Adolesc Health. 2012] - PubMed - NCBI
Compare with Kinsey's results:
"Kinsey’s report in 1948 was the first study to address the occurrence of sexual dysfunction in the general population. Results from this sudy, based on the detailed interview of 12,000 males, stratified for age, education and occupation, indicated an increasing rate of impotence with age. Its prevalence was cited as less than 1% in men under 19 years of age, 3% of men under 45 years, 7% less than 55 years and 25% by the age of 75 years." http://www.bumc.bu.edu/sexualmedicine/physicianinformation/epidemiology-of-ed/
These two studies represent a huge jump in ED rates. What has changed?? But so far no researchers seem to be asking about porn habits...so complete is the brainwashing of the medical profession.