[Old Teufel Hunden]

"Dr. Sharma says that patients who are overweight are more likely to be prescribed medications that protect cardiovascular health - such as beta blockers and statins - which may explain the more favorable cardiovascular outcomes among this population."

I think what this may say about being obese is that you know you have health problems and are therefore more likely to go get treated for it. The takeaway from this should be that even though you exercise and are healthy you should still being getting annual checkups and have your health monitored.

[mason-dixon]

Key to any survey is the group of people selected for the study. In this study, only people who had two types of cardiac surgery are selected. So you have folks who were well screened & approved by a physician as healthy enough for surgery. Given the general bias against overweight folks, I am assuming that this sub-set was more extensively screened.... so the starting population was biased. No wonder that the overweight folks had a better survival rate.