Assessing Feasibility of Prolonged Repetitive Near Infrared Light Stimulation in Early to Mid-Stage Dementia

Inclusion Criteria: * Aged 50-85 years with an independently provided diagnosis of dementia, probable Alzheimer's type. * Dementia symptoms not greater than early to mid-stage dementia * Generally healthy as indicated by recent physical examination within the last 6 months * If labs are available within the last 6 months, renal function, hepatic function, cardiac function should be normal Exclusion Criteria: * Diagnosed actively growing intracranial pathology (tumors etc.) * Misusing illegal substances or alcohol * Previous history of stroke * History of aggression or violence * History of major psychiatric illness * No underlying CNS pathology (confined to tumor, epilepsy only)