Researchers from University College London analyzed the health conditions of 4400 heart patients. It was found that patients with high body mass index, indicating obesity, were more likely to survive when compared with normal weight patients.
Considering excess weight to be a major risk factor, doctors in general put obese heart patients under aggressive treatment. Scientists opine that this increase in survival rate could be due to the aggressive treatment given to obese people.
Thus, the authors conclude that further research is needed to explain the results of this study.