What is obesity?
Obesity is a common group of metabolic syndromes, which occurs when the caloric intake of a human body exceeds its caloric expenditure. The excess calories are then stored in the body in the form of fat. When this amount exceeds normal physiological needs and reaches a certain value, it evolves into obesity. There are many methods for assessing obesity, including anthropometry, dual-energy X-ray absorptiometry, ultrasound, CT, infrared sensing valves, and others. Obesity without a clear pathological cause is referred to as simple obesity, while obesity with a defined pathological cause is referred to as secondary obesity. The causes of obesity are of two types: one is primarily due to excessive diet and insufficient activity, where caloric intake exceeds caloric expenditure; the other is obesity caused by disorders of fat metabolism.
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