There may be one way you can fake it temporarily, though. "It's very hard to fake, thus their presence can fairly reliably communicate one's overall health" "That's actually what makes limbal rings such a good cue to cardiovascular health, though," he says. He says that l imbal ring presence is contingent upon the clarity of the cornea - the outermost layer of the eye - which is partially predicted by the levels of phospholipids in the bloodstream. So is there anything we can do to enhance the visibility of our limbal rings? Not really, says Brown. Good genes, however, are less of a priority when judging someone as a potential long-term partner. ![]() Likewise, being able to spot a healthy woman who offers most competition would also be advantageous. Evolutionarily speaking, being able to recognize health clues that may hint at who has the best genes would be advantageous when choosing a short-term partner to mate with. This makes sense, say the authors, given reproduction is a more costly endeavor for women.
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