Obesity in adults is defined as having a body mass index (BMI) equal to or exceeding a value of 30. BMI is a measurement calculated by dividing weight in kilograms by height in meters squared. For children and adolescents, obesity is defined as a BMI above the 95th percentile, based on the specific age range (healthy BMI varies by age). The Centers for Disease Control and Prevention report that, among adults, rates of obesity have doubled to nearly 30 percent over in the past two decades.

Across the age spectrum, obesity can lead to several serious medical conditions, including diabetes, heart disease, and sleep apnea. The clinical and research communities remain committed to discovering approaches to eliminating obesity. Studies show that for children and adolescents, effective treatment involves the family, particularly parents, in the weight loss process. For adults the LEARN® Program can help establish gradual and sustainable weight loss.