It's been found by a few people who get transplants, that some physical and even some mental aspects of the transplant's previous owner sometimes gets transferred to the new owner. For example, some transplant recipients report that they start wanting certain kinds of food they never liked before, but which the donor liked. Less commonly, actual (but I presume somewhat blurry) ideas and "memories" occur to a few heart transplant recipients who don't recognize those memories as their own. There's a valid reason for this: the heart contains a lot of neurons, nearly or actually identical to some found in the brain, that actually store forms of "memories" useful to the heart.
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