The beauty of a woman's face is not linked to better health. If you like this service, please support! https://www.paypal.me/rolfdegen pic.twitter.com/QWOdJF1iYB
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Because age actually predicts fertility, although it is not genetic and not an interesting individual difference feature.
But to gauge fertility (depending on age), you have to estimate age somehow. Beauty of faces could be useful in estimating age.
From a theoretical point, it is only interesting if women of the same age, but different levels of beauty, differ in health or other good genes marker. Objective age is uninteresting, as it is completely environmental (date of birth). We want to know why is beauty so attractive.
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