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The relationship of female physical attractiveness to body fatness. Abstract Aspects of the female body may be attractive because they signal evolutionary fitness.
Greater body fatness might reflect greater potential to survive famines, but individuals carrying larger fat stores may have poor health and lower fertility in non-famine conditions. There was an inverse linear relationship between physical attractiveness and body fatness or BMI in all populations. There was no peak in the relationship over the range we studied in any population.
WHR was a significant independent but less important factor, which was more important greater r2 in African populations. Predictions based on the fitness model were not supported.
Our perceptions of attractiveness of potential mates is complex and multi-dimensional, and may include many diverse aspects. These include economic parameters, like possessions, wealth and social economic status SES Drury, ; Swami et al.
The relative importance of these different dimensions for physical attractiveness may vary between the sexes and across cultures. One aspect of attractiveness that has received considerable previous attention is the factors that drive perceptions of attractiveness of the female body non-facial. A suggested preference for an optimal WHR around 0. It has been noted, however, that WHR is not independent of body fatness, which may itself be an indicator of physical attractiveness.
More recent work therefore has attempted to partition the importance of these two factors, and it has been conclusively shown across numerous studies that variation in attractiveness is much more closely related to variation in body fatness than to differences in WHR e.
Although many previous studies have set their observations into a post hoc evolutionary rationalization e. Recent large scale epidemiological studies, linking variation in body fatness with risks of disease and fertility, and mathematical models that enable modeling of the relationship between fatness and famine survival, provide an opportunity to model much more closely the expected shape of the relationship between fatness and evolutionary fitness, and hence test whether physical attractiveness is indeed a marker of fitness.
We argue that if physical attractiveness is related to fitness, then the relationship between body fatness and physical attractiveness should mirror the relationship between fatness and fitness.
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