Your waist size should not be more than half your height.

My mother was all about unconditional love, and I don't think we give that to our patients a lot. At the end of the day, what they really need you to do is to look at them in the eye and say, 'I'm here for you. I'm going to make sure this works out.'

I saw many people who had advanced heart disease and I was so frustrated because I knew if they just knew how to do the right thing, simple lifestyle and diet steps, that the entire trajectory of their life and health would have been different.

As a surgeon you have to have a controlled arrogance. If it's uncontrolled, you kill people, but you have to be pretty arrogant to saw through a person's chest, take out their heart and believe you can fix it. Then, when you succeed and the patient survives, you pray, because it's only by the grace of God that you get there.

What we have now is doctors who are actually better technically at what they're doing in their specialty than 30 or 40 years ago, but we lost the relationship, when the doctor would look people in the eye and say, 'I care about you. We can do this together.'