What about transplants? You don't need to digest everything to be incorporated to you. I don't know if there are research about one's behavior changing after r

What about transplants? You don't need to digest everything to be incorporated to you. I don't know if there are research about one's behavior changing after receiving an organ (but there are anecdotes about it). Considering that many donors are people who suffered transit accidents, some of those caused by impetuous driving...