BMI is a calculation of height to weight, and the normal range is usually considered to be 18 to 25, with more than 25 considered overweight and above 30 obese.
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肥胖这个术语涉及到身体质量指数这种计算法,医生们称之为bmi。
The term 'obese' refers to calculations of your Body Mass Index, what doctors call BMI.