Unhealthy diet, inactive lifestyle and stress are considered the main causes of obesity. Due to obesity, excess fat gets accumulated in the body. Obesity not only spoils the physical appearance, but it can also cause many health problems. Obese people have a higher risk of diabetes, thyroid and heart disease. Let us tell you that obesity is generally defined as having too much body mass, that is, a person whose body mass index i.e. BMI is very high, and comes in the category of obesity. There are many types of obesity and their type is determined on the basis of BMI.
(Read more - Are you fat or bloated? - Obesity)