Brain Connections and Blood Pressure

Inclusion Criteria: * Diagnosis of hypertension with or without medication use * Diagnosis of Alzheimer's disease or related dementia disorder or, if no formal diagnosis of Alzheimer's disease, then a Self-Assessment Gerocognitive Evaluation score 17-10 or a Montreal Cognitive Assessment Screen 25-19 Exclusion Criteria: * Unable to understand spoken English * Expect to move out of the area within six months * fMRI imaging contraindicated (history of shrapnel, metal in the body, heart pacemaker, heart defibrillator, metal in the eye, gunshot wound, or some types of metal elsewhere within the body such as certain surgical clips for aneurysms in the head, heart valve prostheses, electrodes, and some other implanted devices) or claustrophobia. However, the participant can be included in the study without fMRI. * Self-reported history of a stroke * \<6 on the Brief Assessment of Understanding of the Study