What can short men do to prevent heart disease?

I read a disturbing, sobering article in the New York Times today which correlates short stature in males with increased risk of coronary heart disease (I had already been aware, however, of the correlation with lower incomes, etc., which seemed more digestible and understandable, I suppose). I then proceeded to read a variety of research study synopses confirming this, much to my dismay (I am 5’6”, 26, and male). I suppose I never got the memo?

In any event, I am curious if anyone—with a scientific background or not—has any insights as to why short men would be at a higher risk for heart disease, as well as, well, what I can actually do to prevent this, besides the standard diet-and-exercise approach. For those who are familiar with these studies, could it be that the shorter men studied were predominantly overweight, thus explaining the propensity for heart disease? I am highly physically active and have a lean BMI, but I’m concerned that one’s BMI or overall level of health wouldn’t have been taken into consideration within the context of these studies. Perhaps the etiology is solely genetic, in which case, I’m screwed. I’m even considering making a special appointment with my doctor to discuss additional ways I can prevent this; I almost feel as though I have a disability. Thanks all in advance for any insights on this heck of a Monday morning.