Having a healthy body weight can reduce your risk of a number of health conditions, including diabetes, heart disease, stroke and cancer.
Eating a healthy balanced diet based on the NHS Eatwell guide can give you higher energy levels, improve your sleep and concentration levels as well as protecting you from illness.
Physical activity is important for maintaining a healthy weight but also helps to keep you in good health. It is recommended that adults do at least two and a half hours of moderate aerobic activity like cycling or fast walking every week, and strength exercises on two or more days a week that work all the major muscles (legs, hips, back, abdomen, chest, shoulders and arms).
The NHS gives advice on healthy eating, physical activity, weight loss, healthy recipes and tackling eating disorders.