Managing Stress is Key
I'm writing as a person who has watched a parent battle heart disease for more than 10 years. The one wisdom I wish my parent would take to heart is to slow down and relax. My parent is a workaholic, and doesn't think that life is worth living unless you're working. I think that has negatively influenced his health in a big way. So if you can take one piece of advice in all this—once you are diagnosed with heart disease, take it slow and get all the rest you can...even after you start to feel better after having open heart/angioplasty/etc.