Are some people more prone to getting confusion?

Let me list them: The people how use alcohol , some medications for Parkinson's disease, diuretics, tricycles, tetracyclic antidepressants and benzodiazepines. The elderly and especially those with pre-existing dementia, vitamin d deficiencies. The people how have(epilepsy, heat stroke or hypothermia, shock or head injury, infection, psychosis or poisoning, stroke.