BMI classifications IMC morbidly obese "severely obese" class three. morbidly obese "severely obese" morbidly obese morbidly obese classifications morbidly obese class III obesity "severely obese" https://en.wikipedia.org/wiki/Classification_of_obesity obese people "severely obese" "severely obese" class III obesity "severely obese" "severely obese" morbidly obese "severely obese" WHO Class III obesity Classification of obesity morbidly obese WHO Class III obesity morbidly obese