What does erectile dysfunction (ED) cause in young men? Studies done, indicate that ED is much more prevalent in men who are young, than it was thought to be. With men under the age of 40, 28% of these men suffered from ED. Half of these young men suffered from ED that was severe. One Of The Biggest Lies About Erectile Dysfunction One of the biggest lies about Male Sexual Impotence, is that only men who are old, suffer from this. This is not at all true and more and more studies are now r...