While there are many different kinds of sexual dysfunctions a man can experience (including premature ejaculation, a very common disorder that happens to porn-watchers), the worst problem to have in this list is the inability to achieve or keep an erection.
Thousands of marriages and relationships have been destroyed by a man’s inability to sexually excite and satisfy his girl.
Interestingly, a few decades ago, it was only old men that had this problem (which occurs naturally to some degree in everyone – as we age blood vessels change and our hearts become weaker).
However, due to the freely available porn videos on various tube sites, many guys have discovered that they have this problem at an advancingly early age – impotence at age 18 is not a rare occurrence anymore.
Check out the following articles to get some more info on the subject (including how to cure porn-induced erectile dysfunction):