Causes of obesity 1. Genetic factors.
Most of them are considered to be multifactorial inheritance. When parents' physique is passed on to their children, it is determined by many genetic factors rather than one, so it is called multifactorial inheritance, such as non-insulin-dependent diabetes and obesity. If one parent is obese, their children have a 40% chance of being obese. If both parents are obese, the probability that the child may be obese will rise to 70% ~ 80%.
2. Social and environmental factors
Many people have the idea that eating is happiness. In today's society, there are many kinds of delicious food, and all kinds of delicious food often tempt you. In addition, eating a big meal has almost become a common entertainment, which of course has become the main cause of obesity.
3. Psychological factors
In order to relieve emotional distress and emotional instability, many people also use food as a way to vent. These are the causes of obesity caused by overeating.
4. Sports-related factors
Exercise helps to burn fat. In daily life, with the development of transportation, the mechanization of work and the reduction of housework, there are fewer and fewer opportunities for human body to consume calories. On the other hand, because energy intake has not decreased, it has caused obesity. Obesity leads to the slowness and laziness of daily activities, and reduces the consumption of calories, leading to a vicious circle and contributing to obesity.
How to prevent obesity: aiming at the whole population, it aims at stabilizing the obesity level and ultimately reducing the incidence of obesity, thus reducing the obesity prevalence rate. By changing the lifestyle, such as improving the diet structure, advocating appropriate sports activities, and reducing smoking and drinking, it finally reduces obesity-related diseases and achieves the goal of national prevention.
Selective prevention: the purpose is to educate the high-risk groups of obesity, so that they can resist the risk factors that may come from heredity and make them prone to obesity. The measures taken are aimed at places that are easy to contact with high-risk groups, such as schools, community centers and primary prevention places. The method is to start with education and take concrete intervention measures. After taking this preventive measure for children, the Ministry of Education in Singapore reduced the prevalence of obesity from 65,438+05%.
Targeted prevention: it is mainly carried out in overweight or obese individuals who have biological indicators but are still not obese, with the aim of preventing weight gain and reducing the prevalence of weight-related diseases. These people have a high risk of obesity and obesity-related diseases, and individuals who have already suffered from weight-related diseases or high-risk factors of obesity-related diseases such as cardiovascular diseases and type 2 diabetes should become the main targets of targeted prevention.
The harm of obesity is 1. Obese people are prone to cancer.
According to the epidemiological survey, obese women are more likely to suffer from endometrial cancer and postmenopausal breast cancer, while obese men are more likely to suffer from prostate cancer. And as long as you are obese, both men and women are more likely to suffer from colon cancer and rectal cancer. The more serious obesity is, the higher the prevalence rate of the above cancers is.
2, leading to various vascular diseases
Obesity can easily lead to various vascular diseases. In addition to excessive subcutaneous fat accumulation, the internal organs and blood vessels of the whole body are also full of fat, so it is easy to cause a variety of vascular diseases, especially cardiovascular and cerebrovascular diseases that seriously endanger health and life. Relevant research data show that the incidence of hypertension in obese people is 65438 0.5 to 3 places higher than that in normal people. Moreover, the higher the degree of obesity, the higher the incidence of hypertension and the more obvious the increase of blood pressure. The incidence of hypertension in severely obese people is as high as 50%. On the contrary, if we take various measures to lose weight, our blood pressure will drop accordingly.
3, easy to induce diabetes
Although obesity can not be said to be the direct cause of diabetes, its inducing effect on diabetes can not be ignored. Many data confirm that the heavier the obesity, the higher the incidence of diabetes. At present, diabetes is the most common disease caused by obesity in some economically developed countries. About one third of adult diabetics are obese. Almost all obese people, fasting blood sugar has increased to varying degrees.
4, easy to cause motor system diseases.
Overweight weight of obese people is an extra burden on the movement system such as bones and joints, especially on the spine and lower limbs. Bones, joints and other tissues support too much weight for a long time, just like carrying extra things every day. Over time, it is bound to break down from overwork, leading to arthritis, muscle strain or compression of spinal nerve roots, causing pain in the waist, legs, shoulders and back, and even joint deformation, which seriously affects limb activities.
5, lead to dyslipidemia
Obese people, especially those with abdominal obesity, are more prone to hypercholesterolemia and hypertriglyceridemia, with abnormal increase of low-density lipoprotein and very low-density lipoprotein, while high-density lipoprotein decreases. At present, the reason why obese people are prone to hyperlipidemia is not very clear. The possible reasons are: firstly, eating more fat; secondly, storing more fat in the body; thirdly, hyperinsulinemia can increase blood lipids; fourthly, there is a problem in the clearance of blood lipids.
6, increase the probability of suffering from hypertension.
Obesity is closely related to hypertension. At the age of 40? Among obese people aged 50, the incidence of hypertension is 50% higher than that of non-obese people. Moderately obese people are more than five times more likely to suffer from hypertension than those with normal weight and more than twice as likely to suffer from mild obesity.
7, increase the heart load
The study found that the incidence of angina pectoris and sudden death in obese people increased by four times. This shows that obesity will definitely increase the burden on the heart and cause heart damage. The heart of a normal human body is like a water pump, constantly contracting and relaxing, maintaining the blood circulation. Obese people store too much fat in their blood, so the total amount of blood increases a lot, and the heart will also increase its contractility accordingly. When the heart is overwhelmed, it can no longer pump blood effectively, leading to the accumulation of blood in the cardiovascular system and even obvious heart failure.
8, leading to fatty liver
About half of obese people suffer from fatty liver. The liver is the place where triglycerides are synthesized, but the liver doesn't have much extra space to store them. In obese people, the balance between triglyceride synthesis and transportation is unbalanced. Obese people consume more fatty acids, so the liver synthesizes more triglycerides. A large amount of triglycerides accumulate in the liver. The result is fatty liver.
9, cause bone and joint diseases
There are three possible osteoarthropathy caused by obesity: osteoarthritis, diabetic osteoarthropathy and gouty osteoarthropathy. Among them, osteoarthritis is the most common and harmful. Osteoarthritis caused by obesity mainly affects knee joint, followed by hip joint and finger joint.
10, which hinders nutrient absorption.
Obesity is a nutritional disorder. For a long time, it has always been thought that as long as you are chubby, it means good nutrition. In fact, obesity does not mean good nutrition. It is caused by malnutrition, just like wasting away. The only difference between them is the amount of fat stored in the body. Obesity is not only an excess of body fat, but also a lack of certain nutrients. For example, many obese children are often accompanied by the lack of trace elements such as iron and calcium, causing various nutritional deficiency diseases such as iron deficiency anemia and rickets.
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