Weight management is the process of adopting long-term lifestyle modification to maintain a healthy body weight on the basis of a person’s age, sex and height. Methods of weight management include eating a healthy diet and increasing physical activity levels. Maintaining a healthy weight is important for health. In addition to lowering the risk of heart disease, stroke, diabetes, and high blood pressure, it can also lower the risk of many different cancers. The key to achieving and maintaining a healthy weight isn’t about short-term dietary changes. It’s about a lifestyle that includes healthy eating, regular physical activity, and balancing the calories you consume with the calories your body uses. Managing your weight contributes to good health now and as you age.