Four invisible health red lines of human body 1. Body mass index (BMI):
Body mass index (BMI) was first put forward by Belgian statistician and mathematician kettler in the middle of19th century. It is defined as the square of weight (kg)/ height (m).
Body mass index (BMI) is a statistical tool for public health research and an indicator of the overall nutritional status of human body. It was used as an indicator of obesity in the past because it was found that body mass index and body fat were highly correlated statistically.
According to the Healthy Body Mass Index (BMI) published by the Ministry of Health and Welfare in 2002, the value is between 18.5 and 24. If it is lower than 18.5, it means that the weight is low. If it is lower than 15, it means a very serious reduction. And if it is over 24, it is overweight, and if it is over 40, it is very serious obesity.
As we all know, obesity can easily lead to cardiovascular diseases such as hypertension, diabetes, myocardial infarction and stroke.
Second, heart rate (heart rate):
Heart rate refers to the number of heartbeats per minute of normal people in a quiet state, also known as quiet heart rate. The heartbeat of a normal person is generally 60 to 100 beats per minute, but the heartbeat speed may vary from person to person due to age, gender or other physiological factors.
If the adult's heartbeat exceeds 100 beats per minute, it is called tachycardia, and if the adult's heartbeat is less than 60 beats per minute, it is called bradycardia. Both symptoms are symptoms of arrhythmia.
Severe arrhythmia can lead to dizziness, fainting, dyspnea or chest pain. Some arrhythmia can increase the risk of complications such as stroke or heart failure, and even lead to cardiac arrest, shock and sudden death.
Third, the neck circumference (neck circumference):
20 10 a study in the American journal of clinical endocrinology suggested that the thicker the neck, the greater the risk of cardiovascular problems and the higher the probability of cardiovascular diseases in the future.
According to clinical research, the neck circumference of men should not exceed 39 cm, and that of women should not exceed 35 cm. Careful observation of obese people's necks is usually thicker, which is mainly caused by poor fat metabolism in the body. People with thick necks have a higher risk of metabolic diseases, and if they are bald, they have a higher risk of cardiovascular diseases.
Fourth, waist circumference:
What is really easy to cause diseases is the accumulation of excess fat in human viscera, so waist circumference has become an important indicator to measure abdominal obesity. The international medical community has listed abdominal obesity, hypertension, pre-prandial hyperglycemia, high triglyceride and low high-density cholesterol as the diagnostic criteria of metabolic syndrome. As long as three or more of the above five items are abnormal, it is metabolic syndrome, which will increase the risk and mortality of cardiovascular disease and diabetes.
Because of the differences between eastern and western body shapes, the waist circumference standards formulated by different countries are also different. In Taiwan Province Province, 90 cm (36 waist) is the standard for men and 80 cm (30 waist) for women. Every increase in male waist circumference 1 cm increases the probability of developing metabolic syndrome14%; Every increase in waist circumference 1 cm increases the probability of metabolic syndrome by 5%.