Two-thirds of adults and nearly one-third of children in the United States are overweight or obese. The rate of obesity in children and adolescents has reached epidemic proportions. USA TODAY, the Nation's No. 1 Newspaper, reports that "heavy teens are often destined for skyrocketing weight gain in their twenties." Over time, obesity causes illnesses, reduces life expectancy, and increases health care costs. The U.S. government, doctors, and scientists...