Obesity or overwieght is defined as having an excessive of body fat. Obesity is more than just a cosmetic concern and increases your risk of diseases and health problems such as heart disease, diabetes and high blood pressure.
Eating too much energy can lead to obesity
Obesity means you are especially likely to have health problems related to your weight.
The good news is that even modest weight loss can improve or prevent the health problems associated with obesity. You can usually lose weight through dietary changes, increased physical activity and behavior changes. In some cases, prescription medications or weight-loss surgery may be options.
For non-obese you have to diet and exercise.
Obesity is common in all ages.Especially in developed countries exe : USA, UK, ...