Obesity and Overweight

Overweight and obesity mean that a person is in a weight range, given his or her height, that can cause health problems. Obesity causes even greater health risks than being overweight. The NICHD is one of many federal agencies and NIH Institutes working to understand overweight and obesity. The NICHD supports and conducts research on the causes of excess weight, how to prevent and treat obesity, and related topics, including conditions caused by obesity.