Normal range of body mass index: between 20 and 25. Body mass index (BMI) is the most commonly used tool to measure the ratio of weight to height in the world. Use the height-to-weight ratio to measure whether a person is too thin or too fat. The calculation method is weight (kg) divided by the square of height (m). It is generally believed that the normal value is between 20 and 25, with over 25 being overweight and over 30 being obese.

The body mass index is suitable for all people aged 18 ~ 65, except children, developing teenagers, pregnant women, wet nurses, the elderly and muscular people.

According to Singapore Lianhe Zaobao 20 18 1 1.5, it is found that too high or too low body mass index (BMI) is related to the increased risk of death caused by various disease factors. When the body mass index is between 2 1 and 25, people have the lowest risk of dying from cancer and heart disease. The research results are published in the new issue of The Lancet Journal of Diabetes and Endocrinology.

When the body mass index reaches or exceeds 30, the risk of death from cancer, heart disease, respiratory diseases, kidney disease and diabetes will increase. Overall, the life expectancy of men has decreased by 4.2 years and that of women by 3.5 years. Low body mass index is also associated with an increased risk of death from a variety of diseases, including cardiovascular diseases, respiratory diseases and dementia. Low body mass index is also an important indicator of poor health.

References:

Baidu encyclopedia-body mass index

References:

People's Network-The higher the BMI, the better! Too high or too low will increase the risk of illness and death.