2015 China Obesity Index released: There are many obese people in the north
According to reports, the 2015 "China Obesity Index" was released. Research shows that the distribution of obese people in China is gradually tightening from north to south, with more obese people in the north and fewer in the south. Especially the Northeast region has become the hardest hit area for fat people in China.
Data show that the obesity rate in the northern region, BMI≥28.0 is significantly higher than that in the south. The obesity rate in the northern region is over 35%, while the obesity rate in the southern region is about 27%. Among them, Hebei, Inner Mongolia and Xinjiang rank among the top three, with obesity rates of 41.9%, 39.6% and 37.8% respectively; Fujian, Zhejiang and Jiangxi provinces rank among the bottom three, with obesity accounting for only 24.5%, 24.8% and 25.1% of the total population.
Why is there a big difference in obesity between north and south?
1. climate difference
The latitude in the north is higher than that in the south, the weather is colder, and human metabolism will be slower than that of southerners who are in warm or even hot areas. Naturally, it is easy to develop fat people.
2. Differences in eating habits
Wang Jingzhong, a researcher at the Institute of Nutrition and Health of the Centers for Disease Control and Prevention, analyzed the published regional distribution characteristics of overweight people in China and believed that in addition to weather factors, obesity is also closely related to the diet structure of local people. The diet in the north has less grains, more foods with high fat and high cholesterol, and the habit of drinking is even worse than that in the south, so northerners are more likely to accumulate obesity.
What is obesity?
Weight is the most commonly used criterion for measuring good figure. Standard weight calculation can be based on BMI. BMI refers to the body mass index, which is a number obtained by dividing the number of kilograms of weight by the square of height and meters. It is currently a commonly used internationally standard to measure the degree of fatness and thinness of the human body and whether it is healthy. According to China standards, BMI≥28 is obese.
In addition to using BMI to judge fat and thin, you can also look at body fat rate. Body fat ratio refers to the proportion of body fat weight to the total body weight. Generally speaking, it is normal for men to have a body fat rate of 10% to 20%, and for women to have a body fat rate of 17% to 30%. But this standard will change with age. For women over 50 years old and men over 55 years old, the standard of body fat percentage can be increased by 2% to 3%. Body fat percentage is calculated as follows:
BMI= weight (kg) ÷ height ² (m)
Body fat ratio =1.2×BMI+0.23× age-5.4-10.8× gender (1 for male, 0 for female)