Exercise doesn't assure clean arteries. Just ask Jim Fixx. He did nothing but exercise and eat nuts and twigs. There are plenty more in cemeteries just like him.
This is so true! Guy I worked with was big into the vegetarian lifestyle and medicinal herbs. I'm the exact opposite: everything in the fields, streams, lakes, oceans and barnyard are on the menu. When his health began to falter he opined that I was right behind him. Whether that's true or not isn't proven cause we're both still alive. The difference is, if we were both in a clinic getting some bad heart related news he'd be wondering "what the h*ll went wrong?" while I'd be wondering " was it the chops, or the pizza, or maybe it was the steaks and ribs; could have all the sausage, maybe it was the pasta, or all the fried chicken....."