There have been various discussions and researches on obesity in the medical world . However, the people who bring various problems due to obesity are called patients by the doctors. Obesity is a disease if the disease of the body increases and if you have to seek medical help for it. The weight of a person depends on his height. If the height is high, the weight will also increase naturally. There are different types of lists available to determine a person's ideal weight, although these differ in weight lists due to differences in health lists in different countries. Again, the difference between the weight of men, women and children can be noticed. Dr. Bimal Chajer suggests taking a simple and scientific method called Body Mass Index. No list is required for this, only knowledge of one's weight and height. The formula he is talking about is: Body mass index = (weight (kg)) / ( 〖height (m.) 〗^ 2) Calculate through this formula. If the body mass index is low then you will be underweight and if the body mass index is high then you will be overweight. 19-22 less weight , 22-25 normal weight and more than 25 more weight. If the body mass index is more than 29, then the condition must be identified as a disease.