Obesity
Understanding Obesity: Definition, Prevalence, Causes, and More Definition of Obesity: Obesity is a chronic disease characterized by excess body fat that impairs health. Health organizations define it based on body mass index (BMI), where BMI = weight (kg)/height (m)². For adults, overweight is BMI ≥ 25 and obesity is BMI ≥ 30who.intwho.int. (Children and teens use age-adjusted […]