From a genetic standpoint, do we get heart disease from mom or dad?; stroke research; S Africa experiment

Reposted from previous week. From a genetic perspective, is it your mom or your dad that is most likely to pass along heart disease?  A new study offers some interesting insights. We hear plenty of information about how to prevent a heart attack, today, results of the latest research on how to prevent a stroke, and I'll give you a little hint, there's a particular area of the grocery store where we should be spending more time. And a fascinating experiment in South Africa suggests how we might improve our kid's concentration, memory, behavior and their ability to spell. Dr. Cooper takes calls.