If there is a brain dead patient and a person with multiple failing organs, why is it not possible to transfer the brain to from patient to patient? I understand there are many ethical reasons to give somebody another’s body, but if both had given consent then would it be possible and if not why?
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If you somehow managed to extract the brain from the cranial cavity without damaging it at all, and making sure it doesn’t go hypoxic, and you somehow were able to identify and catalogue every single nerve in the donors body and figure out a way to attach them all to the recipients brain stem, you would still have one fundamental problem you would not be able to overcome with modern medicine.
Total and utter shock and confusion about waking up in a different body. Your brain has memories of how to use your body. It is suddenly presented with a new body and *nothing* works how the brain expects it to work. Including breathing and operating the heart. The patient would die thrashing around or perhaps even being paralysed in total and utter fear while they have a heart attack.
Normally if there is a limb that is donated the brain can learn to use this within a few months to a year. Now imagine an entirely new body.
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