Harms of Obesity

Written by Yang Li
Endocrinology
Updated on September 06, 2024
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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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The causes of obesity

Obesity can be classified into primary and secondary obesity according to its causes. Primary obesity, also known as simple obesity, is the most common type among various forms of obesity. It is mainly caused by poor dietary habits such as overeating, especially excessive intake of fatty foods, and a sedentary lifestyle, rather than being secondary to other diseases. Secondary obesity, on the other hand, is often due to diseases of the hypothalamic-pituitary axis, hypercortisolism, hypofunction of the thyroid or gonads, insulinomas, and other diseases. Secondary obesity is mainly due to diseases, and it can show some symptoms of the underlying disease.

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What tests are needed for obesity?

Obesity is divided into simple obesity and secondary obesity. Simple obesity refers simply to being overweight without any other primary diseases. Secondary obesity requires examination of certain conditions, such as hypothyroidism, which can lead to obesity, thus necessitating thyroid function tests; or Cushing's syndrome, which involves increased body weight due to excessive corticosteroid hormones produced by various causes, necessitating an examination of the cortisol rhythm and sometimes a dexamethasone suppression test, magnetic resonance imaging (MRI) of the pituitary, and CT scan of the adrenal glands; also conditions such as depression or psychiatric illnesses that can lead to weight gain, requiring corresponding psychiatric scales, among others. In addition to these tests, it is also necessary to consider the patient's clinical symptoms and then conduct targeted examinations based on these symptoms.

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The Harms of Obesity

Mild to moderate primary obesity might not present with noticeable symptoms. However, individuals with severe obesity may experience heat intolerance, reduced physical activity capability, mild shortness of breath during activities, and snoring during sleep. The likelihood of developing coronary heart disease and hypertension is significantly higher in obese individuals compared to those who are not obese. Obesity leads to reduced lung capacity and decreased pulmonary compliance, which can cause various pulmonary functional abnormalities. For instance, obese hypoventilation syndrome, clinically characterized by sleepiness, obesity, and alveolar hypoventilation, often accompanies obstructive sleep apnea. Severe cases of obesity may lead to pulmonary heart syndrome. Obese individuals often experience metabolic disorders of lipids and carbohydrates; lipid metabolism disorders can lead to hypertriglyceridemia and hypercholesterolemia, while carbohydrate metabolism disorders are marked by glucose intolerance and diabetes. Moreover, obese individuals are more prone to arthritis, gout, and osteoporosis. Sexual dysfunction is common in obese individuals, with some obese men developing gynecomastia; obese girls tend to have an earlier onset of menstruation, while adult women with obesity often experience menstrual disorders, and in severe cases, amenorrhea. The incidence of polycystic ovary syndrome is also significantly higher in obese women compared to non-obese women.

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Can people with obesity run?

The treatment of obesity mainly involves controlling diet and increasing exercise, which means "watch your mouth and move your legs." Therefore, running is definitely an option. However, for those who are severely obese, with a BMI over 30, excessive running might be too much for the knee joints to handle. For obese patients, brisk walking is primarily recommended. Another good form of exercise is swimming, which can protect the joints under the pressure of water while also burning calories. Therefore, people with obesity can run, but it depends on the situation and should not be rushed. For those who are severely obese, swimming is recommended as a way to help reduce weight.

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Obesity is classified as what type of disease?

Obesity, also known as adiposis, is a chronic metabolic disease caused by excessive accumulation or abnormal distribution of body fat. Patients with this type of obesity often have excessive abdominal fat accumulation. Moreover, obesity is closely related to the occurrence of hypertension, coronary heart disease, type 2 diabetes, dyslipidemia, sleep apnea, cholecystitis, gallstones, osteoarticular disease, certain cancers, and various cardiovascular diseases.