Cholesterol, don't go breakin' my heart!

Yes, it's true: While cholesterol is needed for healthy nerve and hormone function, too much can lead to cardiovascular disease -- America's No. 1 killer.

Lowering cholesterol naturally starts by limiting fat intake. But where do you go from there? Fortunately, we grabbed Dr. Boyd Lyles' ear for a few minutes to get the lowdown on lowering cholesterol, and preventing it from creeping up the scale in the first place.