November 25, 2006, (Replay of November 18, 2006 Hour 1 CAT scan radiation - is it too much)

CAT scans are an excellent way to help diagnose disease, but is there a possible danger from too much radiation?

If you have carotid artery disease, a new study indicates there's one drug in particular you should take.

Low-carb versus low-fat – is one diet better than the other for your heart?