Whether rooted in the old "big boned" theory or a reluctance to work out for beauty sake, researchers say that black women's perception of obesity differs from that of white women. Tiffany L. Cox, and her team from the University of Alabama at Birmingham, the Neuropsychiatric Research Institute in Fargo, ND, and Obesity and Quality of Life Consulting in Durham, NC analyzed data between 2000 and 2010 and found that most obese women are dissatisfied with their quality of life when compared to women of "normal" weight, but black women report a higher quality of life than white women of the same weight.