Body Weight and Heart Health
Weight alone does not necessarily predict cardiovascular health.
Excess body weight increases risk for cardiovascular disease (CVD), as well as type 2 diabetes, certain cancers, and many other illnesses. However, not everyone who is overweight or obese develops these illnesses; and simply having a “normal” body weight or body mass index (BMI)–a measure of body weight relative to height–is no guarantee of low risk. “The relationship between BMI and risk for CVD and death is complex,” says Edward Saltzman, MD, academic dean for education at Tufts’ Friedman School of Nutrition Science and Policy. “Elevated BMI does increase CVD risk, but risk is also impacted by things like body-fat percentage, waist circumference, age, duration of obesity, race, ethnicity, gender, and other genetic factors,” as well as lifestyle elements such as smoking and level of physical activity.