This document discusses obesity and its health impacts. It begins by outlining leading causes of death and the link between obesity and chronic diseases like diabetes, heart disease and some cancers. Statistics are provided on the growing rates of obesity globally and in countries like the US. Measures of obesity like BMI and waist circumference are explained. Predictors of weight gain and evidence of comorbidities like hypertension and dyslipidemia associated with obesity are described. The solution section emphasizes the importance of a nutritious, low calorie diet high in nutrients and fiber and low in energy dense foods. Behavioral modifications like reducing screen time and sugary drinks are recommended to address obesity at the individual and societal level through prevention strategies.