What is obesity?

Written by Tang Zhuo
Endocrinology
Updated on November 15, 2024
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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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What should people with obesity eat?

Patients with obesity, due to excessive caloric intake, experience accumulation of fat in the body, leading to overweight. Obesity can cause many dangers, such as diabetes, hyperlipidemia, hypertension, etc., so it is important to control your diet. The correct way for diabetic patients to eat is to avoid high-calorie, high-fat foods, such as fat-rich animal products and animal viscera, avoid high-calorie sugary drinks and high-sugar fruits, and try to eat low-calorie, high-fiber vegetables.

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Can people with obesity do yoga?

Overall, individuals with obesity can still practice yoga, as obesity is a condition of nutritional excess and yoga is an aerobic exercise that can increase metabolic rate in the body, achieving a weight loss effect. However, there are many causes of obesity. Primarily, there is simple obesity, for which yoga can be helpful and can reduce body weight. If obesity is secondary, particularly induced by excessive use of steroids and conditions like Cushing's syndrome, yoga can be an appropriate form of exercise, but it is crucial to address the root cause. If the obesity is due to nodules on the adrenal gland, further surgical treatment might be necessary. Therefore, whether individuals with obesity can practice yoga also depends on their physical strength and other personal health conditions, including heart, liver, and kidney functions.

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Can obesity be treated?

Obesity is treatable. Generally, the treatment of obesity mainly includes several aspects: First, dietary intervention; second, increased physical activity; third, correcting bad behavioral habits; some cases may require medication and surgery. Dietary treatment mainly involves reducing calorie intake and recommending a low-sugar diet. Physical exercise generally requires three to five days of activity per week, with 30-40 minutes each day being appropriate. It also includes correcting some poor dietary habits and enhancing self-monitoring, including records of food intake and daily physical activity. Medication treatment is an option for individuals with a body mass index (BMI) of 30 or higher, or a BMI of 27 or higher who also have obesity-related comorbidities. This treatment can be combined with exercise and dietary behavioral corrections. Furthermore, for those with a BMI of 40 or higher, or a BMI between 35-39.9 with one or more severe obesity-related complications such as hypertension, heart failure, type 2 diabetes, or sleep apnea, surgical treatment may be considered.

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Harms of Obesity

In the case of obesity, it is first necessary to distinguish between physiological obesity and pathological obesity. For pathological obesity, further examination of the adrenal glands is required, such as respiratory syndrome, some problems with the pituitary gland, or conditions caused by Cushing's syndrome, all of which can lead to pathological obesity. The risks associated with obesity are quite significant. Firstly, it directly causes disturbances in the body's energy metabolism, hyperlipidemia, hypertension, or other issues. Obesity can also lead to fatty liver, lipid deposition in the heart, kidneys, and other organs, resulting in corresponding organ damage. Additionally, it can cause infertility due to the deposition of fat in the ovaries, and in terms of joints, it places excessive load on the human joints, leading to various joint diseases, and consequently increasing the risks of cardiovascular diseases and sudden death risks.

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Causes of Obesity

Obesity, also known as adiposis, is a chronic metabolic disease caused by excessive accumulation or abnormal distribution of fat in the body. It results from the interaction of multiple factors including genetic and environmental factors that cause fat accumulation. Primary obesity, also known as simple obesity, is the most common type and is mainly caused by poor dietary habits, such as excessive food intake, particularly excessive fats, and a sedentary lifestyle. There is also secondary obesity, which is generally caused by diseases of the endocrine system. Hormonal treatments for allergic diseases and rheumatic diseases can also lead to secondary obesity.