FILE - This undated photo provided by by Watson Pharmaceuticals Inc., shows Atorvastatin Calcium tablets, a generic form of Lipitor, which is being sold under a deal with Pfizer. The nation's first new guidelines in a decade for preventing heart attacks and strokes call for twice as many Americans — one-third of all adults — to consider taking cholesterol-lowering statin drugs such as this or Zocor or Crestor. The guidelines, issued Tuesday, Nov. 12, 2013 by the American Heart Association and American College of Cardiology, are a big change. They use a new formula for estimating someone's risk that includes many factors besides cholesterol, the main focus now. (AP Photo/Watson Pharmaceuticals Inc., Bill Gallery)For decades, if you asked your doctor what your odds were of struggling a coronary heart assault, the answer would activate a host: your ldl cholesterol degree.