When your neurons are replaced, they change. If you are newly in love (or experience a trauma) and a scent is associated with it, you may develop a heightened sensitivity to that scent.
到这里还没完。当你的神经元被替换时，它们会改变。如果你陷入新的爱情（或受了伤），并且有一种伴随气味，你就会对该气味极为敏感。你的生理感知设备进化了。