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Are we ignorant about our own health? Managing uncertainty in obesity? Diseases in the overweight is the growing health issue around the world and is reaching epidemic proportions in some nations. Body fat represents stored energy, and obesity occurs when the homeostatic mechanisms controlling energy balance become disordered. In developed countries, there is a common nutritional disorder in which there is an accumulation of excess body fat. Clinically, obesity is present when body mass index exceeds 30.It occurs when energy intake exceeds energy expenditure. Obesity is most commonly due to overeating than the caloric requirements. Obesity can be encountered with other diseases namely certain metabolic disorders, and endocrine disorders. Obesity is defined as an excess adipose tissue. Accurate quantification of body fat requires sophisticated techniques not usually available in clinical practice. Physical examination is usually sufficient to detect excess body fat. Physical examination is usually sufficient to detect excess body fat. Don’t cut fat and maintain your weight. Reducing fat might not be as “heart-smart” as it sounds.