When does the deterioration of your brain rob you of your identity, and when doesn’t it? Is it when you lose your memories, or is it the loss of something else that robs you of your self? In “Your Brain, Your Disease, Your Self,” philosopher Shaun Nichols and psychologist Nina Strohminger say it is your morality more than your memory that makes you you. “It is only when our grip on the moral universe loosens that our identity slips away with it.”