Body Mass Index (BMI) Body mass index (BMI) is a number based on
a person's weight and height that provides a way to estimate the
effect of weight on health. The higher the BMI, the greater the
risk of some diseases, including high blood pressure, coronary
artery disease, stroke, osteoarthritis, some cancers, and type 2
diabetes. To calculate exact BMI, one of the following equations
is used: eMedicineHealth Medical Reference from Healthwise To
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