A lot of that has been debunked with regular exercise. Many of the plaques and fatty deposits can be linked directly to high carbohydrate and high processed sugar diets in combination with sedentary lifestyles. That's been shown with the prevalence of putting type one diabetics on cholesterol medications in their upper thirties or lower fourties, as a practice, regardless of any other factors due to free sugars in their blood streams. Dietary cholesterol hasn't shown much of a spike in cardiovascular cholesterol at all, on recent studies, to be honest.... let me see if I can find the studies and I'll try and link it, if it wasn't behind a paywall. It might have been a Johns Hopkins, and I think they are paywalled.