Obesity is a complex disorder involving an excessive amount of body fat.
Obesity isn’t just a cosmetic concern. It increases your risk of diseases and health problems, such as heart disease, diabetes and high blood pressure.
If a person eats fewer calories than he or she metabolizes, he or she will lose weight.
Therefore, the most common causes of obesity are overeating and physical inactivity. Ultimately, body weight is the result of genetics, metabolism, environment, behavior, and culture.