In the 30 years since they were approved by the FDA, cholesterol-lowering drugs called “statins” have cut in half Americans’ death rate from heart disease. Today, more than 20 million Americans take a statin drug like Lipitor or Zocor. Many of these people have high cholesterol but no sign of heart disease. There is growing evidence that statins provide little or no benefit for healthy patients and can trigger dangerous side effects. And new studies question whether there really is any link between cholesterol levels and heart disease. Diane and a panel of guests discuss the latest cholesterol research and what it means for heart disease prevention.