甘肃疾控：从体重指数、体脂率和腰围三个方面认识体重

Group 1 - The article emphasizes that assessing weight health cannot rely solely on Body Mass Index (BMI), as individuals with a normal BMI may still have abnormal body fat percentage or waist circumference [1][2] - BMI is calculated by dividing weight (in kilograms) by height (in meters) squared, with a normal range for adults generally between 18.5 and 23.9 [1] - Body fat percentage is defined as the proportion of fat weight to total body weight, with normal ranges for adult males being 15% to 18% and for females being 25% to 28% [2] Group 2 - Waist circumference is a critical indicator of abdominal fat accumulation, with normal measurements being less than 85 cm for males and less than 80 cm for females [2] - An increased waist circumference (≥90 cm for males and ≥85 cm for females) can indicate central obesity, which is associated with various metabolic diseases [2] - The article describes a specific body type known as "apple-shaped obesity," characterized by a larger waist despite normal weight, which poses significant health risks [2]