Childhood obesity has more than tripled in the past 30 years and the percentage of children ages 6–11 years in the U.S. who were obese increased from 7% in 1980 to nearly 20% in 2008. The percentage of adolescences ages 12–19 years who were obese, has increased from 5% to 18% over the same period. In 2008, more than one third of children and adolescents were overweight or considered obese.
What is the Definition of Over Weight
Overweight is defined as having excess body weight for a particular height from fat, muscle, bone, water, or any combination of these factors. Obesity itself is defined as having excess body fat. Overweight and obesity are usually the result of an excessive “caloric imbalance,” for example, too few calories burned for the amount of calories consumed. Obesity can also be influenced by various genetic, behavioral, and environmental factors.