Obesity has at least the following hazards.
First, it causes heavy posture, inconvenient activities and psychological obstacles.
Second, the cost of food, clothing, housing and transportation has risen.
Third, it brings all kinds of fatal diseases and even leads to premature death.
Among them, the biggest harm of obesity is that it will lead to a series of serious complications, such as hypertension, diabetes, dyslipidemia, coronary heart disease, malignant tumors and so on. These diseases are the main killers of human health, and they also cause harm to six body parts.
1. Heart
The operation of the heart needs blood oxygen, while the excess adipose tissue in the body needs to consume more oxygen. The more fat accumulated in arteries, the worse arterial function. Thickening of blood vessel wall and decrease of blood flow will not only increase the burden on the heart, but also increase the risk of thrombosis and deterioration of systemic blood circulation.
2. Colon
Studies have found that obesity is most associated with colon cancer. Among obese people, the incidence of intestinal cancer is strikingly proportional to the degree of obesity. Experts believe that one of the main reasons is that excessive intake of processed meat and red meat increases the risk of intestinal polyps (an early sign of colon cancer). Another main reason is the high level of insulin or insulin-related growth factors in the blood.
3. Brain
A study at UCLA found that compared with people with normal weight, fat people have 8% less brain tissue on average and premature brain aging 16 years. Generally, the brain tissue of overweight people is 4% less than that of normal people, which will lead to premature aging for 8 years. The fatter they are, the worse their cognitive function will be.
4. Skin
Obesity will lead to changes in hormones in the body, which will lead to acanthosis nigricans (pigmentation, skin thickening, roughness and so on. ) and stasis dermatitis (redness, swelling and inflammation of the skin, etc. ), but also lead to venous dysfunction and increase the risk of foot ulcers.
5. lungs
A study found that compared with people with normal weight, people with obese abdomen are twice as likely to have lung function damage as normal people, and the incidence of respiratory diseases such as chronic obstructive pulmonary disease and sleep apnea is higher.
6. Liver
The degree of liver fat accumulation is directly proportional to body weight. 30%~50% of obese people are complicated with fatty liver, and the pathological rate of fatty liver in severely obese people is as high as 6 1%~94%. After the weight of obese people is controlled, their fat infiltration will also decrease or disappear.