Smoking Causes Impotence

I've always promised myself that I wouldn't marry a man that smokes. Now maybe I can use this to back me up...

Smoking Ups Impotence Risk in Younger Men

NEW YORK (Reuters Health) - Adding to evidence that smoking is bad for a man's sex life, new study findings show that smoking may raise the risk of impotence, particularly in younger men.

Researchers found that among the more than 1,300 men they followed, those who smoked were at greater risk of erectile dysfunction (ED) than either former smokers or non-smokers...

...A number of past studies have pointed to the impotence risk associated with smoking. Though the reasons aren't fully clear, it's thought that the effects of smoking on the blood vessels may impair blood flow to the penis, leading to problems with maintaining an erection.

So is this why men like to smoke after sex too? :-P