Medically reviewed by Karina Tolentino, RD Being overweight is defined as having more body fat than is ideal for good health.

A new study reveals that Roux-en-Y gastric bypass in adolescents with morbid obesity results in a uniform reduction in BMI of approximately 37%, regardless of the degree of obesity before surgery.

This study has addressed the concept of sedentary behavior and PA by looking specifically at how watching television and engaging in moderate levels of PA effect BMI classification. The effect of ...