In this episode, I discuss other causes of personality disorders, or behavioral changes that are similar to personality disorder traits. These issues can cause volatile, manipulative, impulsive, and in some cases violent behavior. I explore personality changes caused by long-term alcohol and drug use, neurodegenerative illnesses such as Alzheimer's disease, AIDS related dementia, Wernicke Korsakoff's syndrome; CTE, and personality changes caused by seizure disorders.