Some little girls obviously weigh more than 90 kilograms, but they always feel fat. This is their subjective feeling of being fat or thin. In fact, obesity has objective standards.
At present, the body mass index has been officially recognized.
Body mass index, also known as body mass index, is an international standard to measure the degree of obesity.
The formula is: body mass index = weight (kg) divided by the square of height (m). For example, if the height 1.7m and the weight are 70kg, then 70 is divided by the square of 1.7 (1.7 times 1.7=2.89), and the result is: 70 divided by 2.89=24.22.
So is this obesity?
Let's look at the standard:
According to the body mass index, the recommended grouping for measuring obesity is as follows (unit: kg/m? ):
Low weight: body mass index 18.5
Normal weight: The body mass index is 18.5-24.9.
Overweight: The body mass index is 25.0-29.9.
Obesity: Body Mass Index 30
The result of our calculation just now is 24.22, which is still in the normal range, but it is already the upper limit of the normal range.
Body mass index is an important index to measure obesity, but there are also some shortcomings. Although some people have normal body mass index, their bellies are particularly large, which is medically called abdominal obesity. This type of obesity will increase the risk of heart disease, diabetes, hypertension, hyperlipidemia and fatty liver. Therefore, it is necessary to add an indicator of waist circumference. Male waist circumference 102cm, female waist circumference 88cm, which is considered as an increase in waist circumference.
What are the causes of obesity?
Obesity is caused by many factors, and obesity has certain genetic correlation, while eating habits and lifestyle are the two main aspects that lead to obesity. Generally speaking, it means eating too much and moving too little.
In addition, some diseases such as Cushing's syndrome, polycystic ovary and hypothyroidism; Lack of sleep; Socioeconomic factors can lead to obesity.
How to lose weight scientifically?
1, diet: one reduction, one medium quantity, one large quantity.
Reduce intake: processed meat such as polished rice, refined pasta, pickled, smoked and braised pork, high sodium, fried food and puffed food.
Proper intake: simply processed red meat, poultry, eggs and milk.
Large intake: vegetables, fruits, fish, nuts, whole grains, beans, yogurt.
Step 2 exercise
5-7 times a week. Each exercise should last for 30 minutes or more.
3. Behavioral therapy
Need professional assistance to help change diet and habits.
4, drugs and surgical exercise
It is recommended to consult a professional doctor.
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