According to Dr. Stephen C. Brewer, medical director at Canyon Ranch in Tucson, in an article titled ‘Is it possible to be fit and fat?’, “Being orweight is typically defined by body mass index (BMI), a common measurement of body fat based on height and weight. According to World Health Organization, people with a BMI of 30 or more are considered obese, which puts them at risk for certain health problems. Those with a BMI below 25 are considered normal and healthy, while a BMI between 25 and 30 is defined as overweight. However , the problem is, BMI doesn’t tell the whole story about someone’s health. For instance, the computation fails to take into account gender (women have more fat than men) or lean muscle mass. BMI also doesn’t measure how much fat you’re carrying compared to other components of the body — what’s called body composition, or the amount of lean tissue (muscle, bone and organs) and fat you have. "Two people with the same BMI can look very different” “Someone can have excess fat and have the same BMI as a person who has a lot of muscle "