When you go in for a wellness exam, oftentimes the first things the medical assistant does is take your height and weight. With this data, the computer spits out your body mass index (BMI) number.

For decades, BMI (body mass index) has been the go-to number doctors use to decide whether someone is underweight, "normal," overweight or obese. But new global research suggests it's possible to have ...

Add Yahoo as a preferred source to see more of our stories on Google. For these reasons as well as the influence of environmental, hormonal, and mental factors, “your body size is not a very good ...

BMI is a quick way to check if someone is at a healthy weight. Traditional BMI doesn't account for factors like age, muscle, or ethnicity. Pregnancy weight gain recommendations depend on your BMI ...