Why you so easily get fat?

2009 08/13

When the human body intakes more calories than it consumes, the excess heat is stored in the body in the form of fat, which exceeds the normal physiological requirement and becomes obese when it reaches a certain value.Obesity is defined as an excess of 20 percent of the standard body weight or a body mass index [BMI= weight (k)/ height (m)2] greater than 24 due to body fat gain.If no obvious cause can be found, it is called simple obesity; if there is a clear cause, it is called secondary obesity.Obesity was defined as a disease by the International Classification of Diseases as early as 1984, but in recent years it was gradually realized that it was a serious health problem.

Causes of obesity
1.The unreasonable diet structure
People who are fond of eating sweet food or high fat food and generally eating a large amount of food . It will lead to the actual intake of more calories than the body consumes, so it will cause uneven consumption of calories and excessive absorption of body fat, result in obesity.

2.Lack of exercise
In modern society, with the development of transportation and the mechanization,electrification of housework, physical activity has been greatly reduced. Making the supply of energy more than needed, resulting in the imbalance of energy supply and consumption, often causes obesity. Modern people are accustomed to a comfortable living environment, lack of exercise and exercise consciousness and behavior. Especially after dinner, many people may lie down in bed to play with their mobile phones and ipads, or sit in front of the TV for a long time,even hardly walk.It will consume less energy, which will lead to obesity.

3.inheritance
It mainly refers to the obesity caused by the change of genetic material (chromosome, DNA), which is extremely rare and often tends to be familial obesity. The incidence of obesity is mainly manifested in three stages: infancy, puberty and adulthood over 40 years old. The vast majority of infants and adolescents can develop into adult obesity, and the degree of obesity is serious. For example, if one of the fathers and mothers in the family is obese, about 50% of the children will be obese. If both parents are obese, the incidence of obesity in children will be greater, according to statistics, about 80 percent.

4.Endocrine disorders

Obesity is closely related to endocrine function, endocrine disorders often accompanied by secondary obesity. Increased insulin secretion, hypofunction of anterior pituitary gland, hypothyroidism and hypogonadism in vivo can cause obesity. Encephalitis, brain trauma, brain tumors or long-term injection of certain hormones often cause obesity.

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There are many ways to lose weight.first we shoulde change our unhealthy lifestyle and keep a balanced diet.we also should often do exercise like doing physical exercise with friends on weekend and taking a walk after dinner.wearing sport protective gear can make you away from some sports injury.Drug weight loss is discouraged.It may cause some side effect.

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