No population in the United States has a higher obesity rate than African American women, four out of five of whom are overweight or obese, according to a study by the Centers for Disease Control and Prevention. In the general adult population, 70 percent of adults are overweight or obese. Along with looking for the reasons why diabetes, breast cancer, and glaucoma plague black women, her team has explored the root causes of their obesity and suggested realistic ways they can alter their lifestyles to lose weight. In , the average age of participants was 38, and 30 percent were obese. The BWHS team combed through survey responses about diet and exercise to learn why the women struggled to maintain a healthy weight. And when the women were asked how often they ate out and what type of fast food they chose—burgers, pizza, Mexican, Chinese, fried chicken, or fried fish—those who frequently chose the first option had the most consequences.