>This study of more than 40,000 people, published in JAMA Internal Medicine, accounted for all other potential risk factors including total calories, overall di

>This study of more than 40,000 people, published in JAMA Internal Medicine, accounted for all other potential risk factors including total calories, overall diet quality, smoking, cholesterol, high blood pressure, obesity and alcohol. How can a study that ignores physical activity possibly discover anything significant about heart disease?