Female and male 3D face shapes associated with low (left of each pair) and high (right of each pair) BMI. For women, the face shapes correspond to BMIs of 18 and 31, respectively; for men, the face shapes correspond to BMIs of 17 and 29.
Relation of facial shape and perception of health for a set of 3D head models. The dashed line gives the best fit quadratic function relating perceived health to the face BMI score (variance explained R2 = 0.25). The quadratic relationship shows that face shapes associated with high and low BMI were perceived as less healthy than other faces.