For decades, health experts have relied on body mass index (BMI), a ratio of weight to height, to classify people as underweight, normal weight, overweight or obese. But sometimes, you need more than ...

BMI (body mass index) has long been thought of as an indicator of how healthy someone is. The truth is a little more complicated, doctors say.

"BMI is trash. Full stop." This controversial tweet, which received thousands of likes and retweets, was cited in a recent Medscape perspective by one doctor on when physicians might stop using body ...