article_snippet: These 3D images are a composite of two sets of male faces, showing the average facial structure for each age group.
article_snippet: The left image shows the average of the 17-29 year-old man,  and the right 60-77 year-old man .
article_snippet: The left image shows the average face of a 17-29 year-old women, and the right 60-77 year-old female .
article_snippet: Pictured is a heat map of weight values for older men (right) and women (left). 