Obesity is a complex disease that involves an excessive amount of body fat. Obesity isn't only a cosmetic concern. It's a health problem that raises your risk of different diseases and health issues, like heart disease, stroke, diabetes type 2, high blood pressure, and certain types of cancers.

There are various reasons why some individuals have difficulty avoiding obesity. Normally, obesity results from a combination of inherited factors, together with the surroundings and personal diet and exercise options.

The good thing is that even modest weight loss can improve or prevent health problems related to obesity. Dietary changes increased physical activity, and behavior changes can help you drop weight. 

See: How to lose belly fat naturally