Christopher Carpenter's and Brennan Davis' findings suggest a link between student obesity and their exposure to fast food restauarants. Pictured above: the breakfast of champions. In another step towards unveiling the reasons for prevalent obesity in America, Doctors Brennan Davis of Azusa Pacific University and Christopher Carpenter of the University of California at Irvine have conducted a new study focusing on teenage obesity.  Davis and Carpenter used specific 2002 – 2005 data from the California Healthy Kids Survey on more than 500,000 students from middle and high schools. ...