The old way of thinking: Deal with the whole LDL thing when your doc says it’s dangerous. What science is finding now: That’s way too late. BY ALICE OGLETHORPE FOR 100 YEARS, cardiovascular disease has been the number one killer of men, and for almost as long, high cholesterol has been linked to heart attacks, strokes, and other cardiac catastrophes. But how early in life and how fast you need to move on cholesterol have changed. Two of the reasons: We know more now about the complicated relationship between cholesterol and heart attack risk, and we now have more precise ways to calculate your personal risk. …