The document discusses weight categories based on Body Mass Index (BMI). It defines the categories of underweight, normal weight, overweight and obese based on BMI ranges. Being overweight or obese increases the risk of health issues like heart disease, diabetes and stroke. The leading causes of weight problems are poor eating habits, lack of exercise and consuming processed foods. The document provides tips for maintaining a healthy weight such as regular exercise, eating nutrient-rich whole foods, avoiding emotional eating and keeping a food diary.