The U.S. National Health and Nutrition Examination Survey of 1994 indicates that 59% of American men and 49% of women have BMIs (Body Mass Index) over 25.
BMI nearing 15 is usually used as an indicator for starvation and the health risks involved, with a BMI <17.5 being an informal criterion for the diagnosis of anorexia nervosa.
The body mass index (BMI ), or Quetelet index, is a statistical measure of the weight of a person scaled according to height.
BMI provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems. It was invented between 1830 and 1850 by the Belgian polymath Adolphe Quetelet during the course of developing “social physics “.