From Adrian Ellis
I enjoyed your article on the development of facial analysis software that can predict body shape (8 June, p 20), but was perplexed as to why the engineers want to refine their software to more accurately match a subject’s body mass index.
BMI is considered a crude and often misleading indicator of body condition. The engineers would be better off refining the software by matching it to a person’s body fat percentage.
Hampton, Middlesex, UK
