There are several main reasons why people gain weight:
1. Genetic factors: Studies show that both parents are normal, and the incidence of childhood obesity is10%; If one parent is obese, the incidence of obesity in children is 32% ~ 40%; Both parents are obese, and the incidence of children's obesity rises to 60%~75%.
To be sure, incorrect eating habits will be passed on to future generations, and the next generation will also inherit "parents' wrong eating habits"
★★★★ Genetic factors are so important, are some people destined to be obese? Genetic factors are like a seed, while social environment, lifestyle and eating habits are like soil, sunshine and humidity. Only seeds, without suitable growth conditions, it is difficult for this seed to blossom and bear fruit. However, if we create suitable environmental conditions for him, it will promote obesity.
2. Abnormal energy metabolism. Under the same dietary conditions, the anabolism of obese people is higher than that of normal people, especially the increase of fat synthesis and the decrease of decomposition, which is generally considered to be related to the increase of insulin.
3. Neuropsychological factors. The central nervous system regulates appetite and digestion and absorption of nutrients by affecting the appetite center of hypothalamus. When hypothalamic lesions or some metabolic changes in the body affect the appetite center, polyphagia will occur, which will lead to obesity. Long-term mental depression, slow metabolism, easy to get fat; Some people, in order to alleviate their emotional distress and emotional instability, use "eating" to vent or mope all day, sitting and exercising less, leading to weight gain; At the same time, we also have another extreme, good spirits, good food, good taste, and delicious food, which leads to overeating.
4. Social and environmental factors. The concept of "being able to eat is a gift", in today's society, there are many kinds of delicious food, which tempts your appetite, hangs your appetite, makes you look pleasing to the eye and makes you unable to refuse. Besides, "a big meal" and various parties take place around us or on your own.
5. Changes in eating habits, lifestyle and diet structure. Once the intake of too much fat and sugar is not fully consumed, it will lead to excess energy and "imbalance of income and expenditure", which will seriously promote the accumulation of fat; At the same time, it is also possible to consume too much alcohol or sugary drinks, or too much sweets, leading to excess energy, "less input" and obesity.
★★★★ Bad eating habits mainly include the following points:
① Eating too fast; ② Eat snacks regularly; ③ Improper dinner; 4 eating too much sugar; ⑤ Partial eclipse ...
6. the amount of exercise is reduced. Exercise can consume energy, increase fat decomposition and lose weight. In daily life, with the development of transportation, the mechanization of work and the reduction of housework, the opportunity for human body to consume energy decreases, on the other hand, the energy intake does not decrease, leading to obesity. Because of obesity, people's daily activities are slower and lazier, and energy consumption is reduced, forming a vicious circle and contributing to obesity.
Lack of exercise has become an important cause of obesity. The improvement of transportation, electrification of family labor and reduction of manual labor have almost formed a "conservation-oriented" society.
★★★★ Any one factor may lead to obesity, and there may be many factors in the same person.