Correlation between height and weight
There is a certain correlation between height and weight. Generally speaking, tall people will be heavier and short people will be lighter. This is because height and weight are influenced by many factors such as heredity and environment.
However, it is not accurate enough to judge a person's health only by his height and weight. Because the height-to-weight ratio may change because of the difference in muscle mass and fat mass. Therefore, we need more accurate indicators to evaluate a person's health.
How to measure height and weight
Measuring height and weight is the first step to know your health. Here are the steps to measure height and weight:
1. Height measurement: erect the height pole on a flat ground, let the examinee take off their shoes, stand on the height pole, stick tight height poles on the head, shoulders, hips, legs and feet, and then read the height value.
2. Weight measurement: Put weighing scale on the flat ground, let the subjects take off their shoes and coats, stand on the weighing scale in light clothes, and then read the weight value.
How to assess health status
Knowing your height and weight is only the first step to know your health. We need more accurate indicators to evaluate your health. Here are some commonly used health indicators:
1. Body mass index (BMI): BMI is the ratio of weight to height, which is an important index to evaluate the degree of obesity. The calculation formula of body mass index is: weight (kg)/ height (m) squared. The normal range of body mass index is 18.5 to 24.9, below 18.5 is thin, 25 to 29.9 is overweight, and over 30 is obese.
2. Waist circumference: Waist circumference is an index to evaluate central obesity. Excessive waist circumference increases the risk of cardiovascular disease and diabetes. The waist circumference of men exceeds 94 cm, and that of women exceeds 80 cm is central obesity.
3. Body fat rate: Body fat rate is the proportion of body fat to the total weight, and it is an index to evaluate the degree of obesity and body composition. The body fat rate is in the normal range of 15% to 20% for men and 20% to 25% for women.