divided into several groups.Р1.According to BMIРBMI is calculated by dividing the subject's mass by the square of his or her height.?Formula : BMI=weight/height2РBMIРClassificationР<18.5РunderweightР18.5-24.9РNormal weightР25.0-29.9РoverweightР30.0-34.9Рclass I obesityР35.0-39.9Рclass II obesityР≥40Рclass III obesityР2. According to fat distributionРPear-shaped obesityРApple-shaped obesityРObesity’s effectsРObesity is one of the leading preventable causes of death worldwide. ?Obesity increases the risk of many physical and mental conditions. For example high blood pressure, high blood cholesterol, type 2 diabetes…..РWhat causes obesityР1. ic factors ?80% of the offspring of? two obese parents are? obese .?And scientists have found?the FTO gene that ?associated with fat mass ?and obesity.