I agree it CAN be physical, but it's far more likely to be physical if the men affected were 60 plus, who are far more likely to have physical issues than young

I agree it CAN be physical, but it's far more likely to be physical if the men affected were 60 plus, who are far more likely to have physical issues than young men. While 18 year old men can have physical issues which could cause ED, IN GENERAL, 18 year old men are in the prime of their life and also are usually extremely horny. I remember one kid I knew in school telling me he would jerk off 3 to 5 times per day! Not many 60 year olds are doing that... The point is this, generally at 18-25 roughly your body is working better than it ever will, so I would be inclined to believe that if young men cannot get hard, on balance and probability, it's more likely to be mental than physical. If it was physical, then why don't we see the same trend in older men?