The FAs were most attracted to the photo of a woman with a body mass index of 29.24. BMIs are computed by dividing weight in kilograms by height in meters squared; according to the Centers for Disease Control and Prevention, a body mass index of 25 to 29.9 qualifies a person as overweight, while those who are obese have a BMI of 30 or higher. For example, a 5’6” woman at 155 pounds is overweight, and is obese at 190 pounds.