Quote:
Originally Posted by Bill O'Rights
Cervantes pointed out that; "Mentally many of us has a block, a form of mental stop when it comes to mixing even the thoughts of familymembers and sex." Is that biological? Or is that learned behavior?
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I would be very hesitant to say that it is biological, simply because I have yet to read a study of this. But taken from what we know.. I would guess that we have a mild genetical distaste for reproduction with people who are closely related. The same kind of distaste we have for people we feel are genetically inferior to us.
That distaste is then amplified by social means.
EDIT: Ustwo I would be very interested in reading the study you are citing, could I be so bold as to ask for a reference?