What is the normal value of female bmi, what should I pay attention to?

        BMI is the abbreviation of body mass index, and is currently an important international standard for measuring the degree of obesity and health of the human body. Its calculation formula is the square of weight/height (international unit kg/㎡).

　　 Under normal circumstances, the normal range of BMI is 18.5-24.0. When ≥24.0 and <28.0, it is overweight; when ≥28.0, it is obese; and when it is <18.5, it is too low. For example, a woman with a height of 1.6m and a weight of 60kg has a BMI of 60/(1.6×1.6)=23.437, which is a normal weight.

        In addition to BMI, for weight calculation, we can also calculate whether the weight is normal, such as abdominal circumference and waist-to-hip ratio. There are many reasons for overweight and obesity. Common ones such as improper diet, long-term alcohol abuse, lack of exercise, etc., can all lead to obesity. Everyone should pay attention to it. Obesity can lead to a series of complications. For your own health, you should pay attention to control. Weight, obese people pay attention to weight loss.

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　　This problem is actually a concern of many women, especially young women, who pay great attention to body maintenance. In fact, physical health is more important than good figure and appearance. Sometimes many young women keep losing weight in order to be slim. In fact, from the value set by bmi, the standard weight is one of the important indicators to reflect and measure a person's health. Being overweight and overweight are not good for your health, nor does it give you a sense of fitness.

　　 Then, from the perspective of good health, let's take a look at how much bmi is normal? Below we replace the abbreviation of BMI with capital letters, which is more formal.

　　 What is BMI first?

　　 BMI index (Body Mass Index in English, referred to as BMI) is a number obtained by dividing the weight in kilograms by the square of the height in meters. It is a commonly used international standard to measure the body’s weight and health. It is not only for women, but also for everyone.

　　 BMI has many kinds of algorithms, among which the international standard algorithms are the main ones.

　　 First, the international general algorithm: The calculation formula is:

　　 Body Mass Index BMI = weight (kg)/height (m) squared or kg/m2.

　　 Chinese physique standards: normal range 18.5~23.9, overweight 24.0~27.9, obesity ≥28.0).

　　Second, there is also a simple calculation of standard weight for normal adults:

　　 Standard weight (kg) = height (cm) -105

　　 Third, there is an ideal weight algorithm based on the difference between northern and southern Chinese.

　　 Northerners' ideal weight (kg)=[Height (cm)-150]×0.6+50;

　　 Ideal weight for southerners (kg)=[height (cm)-150]×0.6+48.

　　 The second and third items, after calculating the standard weight, use your own weight ÷ standard weight to get the value and refer to the following values ​​to see if the weight is normal.

　　①The standard weight plus or minus 10% is the normal weight.

　　②The standard weight plus or minus 10%~20% is overweight or underweight.

　　③The standard weight is plus or minus 20 or more is obese or underweight.

　　 Compared to BMI, the current body fat percentage test is actually a better reference indicator.

　　 Body fat percentage refers to the proportion of body fat in the total body weight, also known as body fat percentage, which reflects the amount of body fat.

　　Here I only talk about the calculation method for women. The formula for calculating the body fat percentage of adult women:

　　Parameter a=waist circumference (cm)×0.74

　　Parameter b=weight (kg)×0.082+34.89

　　 Body fat weight (kg) = a-b

　　 Body fat percentage = (total body fat weight ÷ weight) × 100%

　　The normal range of body fat rate for adult women is 20%-25%. If the body fat rate is too high, the body weight is more than 20% of the normal value and it can be regarded as obesity.

　　 So for weight loss, it is mainly to reduce fat, not just to lose weight. Especially people with abdominal obesity are more unfavorable to their physical appearance and health, and they need to work hard to lose weight.

　　 For BMI, what are the effects if it is too low or too high? What should I do?

　　 1. What are the hazards of low BMI? What should I do?

　　Some female friends deliberately lose weight in order to reflect the devil's figure, causing BMI to be lower than normal. In fact, it is not good for health.

Too low BMI not only affects daily life and work, but also makes it easy to feel tired, poor physical strength, weakened body resistance, poor immunity, weak cold and disease resistance, and prone to many diseases, such as gastroptosis, gallstones, etc. Wait.

　　 So you need proper nutritional supplements and eat more desserts and meats appropriately.

2. What is the harm of high BMI? What should I do?

　　 First of all, if it is too high, it will affect the female figure.

　　In addition, if obesity occurs, it will bring many risks, increase the risk of cardiovascular disease, affect the function of the digestive system, affect the function of the endocrine system, increase the risk of cancer, joint soft tissue damage, decline in reproductive ability, and so on.

　　 There are data showing that for every increase in body mass index by 2, the relative risks of coronary heart disease, stroke, and ischemic stroke increase by 15.4%, 6.1%, and 18.8%, respectively.

　　So what to do if BMI is too high?

　　1, change eating habits

　　 Proper diet, eat less snacks, eat less high-fat foods, reduce calorie intake, and change the main diet to vegetables, fruits, grains and a small amount of lean protein. Slow down and eat slowly. Also, do not drink carbonated drinks, sweetened drinks, dairy drinks, etc.

　　2, adhere to regular exercise

　　 No less than 4 times a week, about 60 minutes of aerobic exercise each time, such as brisk walking, aerobics and other items, the most important thing is to persist.

　　 3. Maintain an optimistic attitude

　　 Adjust your mentality, especially not to eat or drink when you are bored or stressed.

　　 4. Ensure adequate sleep

　　Ensure adequate sleep and do not stay up late at night.

　　 To sum up, bmi is an indicator for observing human body weight. It needs to be tested daily, and body fat is tested. If the value is too low or too high, it will be detrimental to the human body. Pay attention to improvement.

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　　 Body mass index (Body mass index, BMI) is a simple index that shows the relationship between weight and height. It is an internationally recognized objective indicator for measuring the degree of obesity in general adults. It is usually used to classify overweight and obesity in the adult population. By calculating the body mass index, the degree of obesity and the risk of disease can be measured. According to medical research, when the body mass index increases, the risk of illness and mortality will increase accordingly.

　　 Body Mass Index (BMI) = weight (kg, kilogram) / height (m, meter) square (kg/㎡)

　　 There is a high correlation between body mass index and obesity. It is the most useful measure to assess a person's overweight and obesity, because the body mass index is the same for men and women and adults of all ages. In 1998, the World Health Organization (WHO) defined "overweight" as body mass index ≥ 25, and "obesity" as body mass index ≥ 30.

　　 However, this standard does not apply to Asians, especially we Chinese. Studies have shown that the fat content of Asians is much higher than that of Westerners of the same weight. At the same time, Asians are more likely to suffer from obesity-related diseases such as hypertension, diabetes, and cardiovascular diseases than Westerners of the same weight. Therefore, it is not appropriate to use the same standard. Asians should have stricter BMI health standards than Westerners.

        Asian Adult BMI Standards and Risk Classification of Related Diseases

　　 Classification BMI-related disease risk

　　 underweight <18.5 low (but the risk of other diseases increases)

　　 Normal range 18.5～22.9 Average level

　　 overweight 23～24.9 increase

　　 Mild obesity 25～29.9 Moderate increase

　　 Severe obesity ≥30 Severe increase

　　 related diseases refer to risk factors such as hypertension, diabetes, and dyslipidemia.

        It is worth noting that BMI cannot determine the ratio of muscle to fat in human body weight, so BMI may not accurately reflect certain types of adults, such as athletes, bodybuilders, fitness enthusiasts (more muscle ratios) or the elderly (less muscle ratios) ) The degree of obesity. In addition, children and adolescents are in the stage of growth and development, and their weight and height vary greatly. The standard for measuring obesity is also different from that of adults.