Alzheimer’s Disease and other Dementias can be deeply painful to both patients and caregivers. The Alzheimer’s, Autism, Cognitive Impairment Stem Cell Treatment study (ACIST) is an IRB approved, NIH registered clinical study listed on www.clinicaltrials.gov NCT 3724136. It is using Bone Marrow Derived Stem Cells (BMSC) in the treatment of these diseases. Patients are first evaluated with the Mini-Mental Status Exam and must score in what is considered the range for dementia before being admitted to the study. Eligible conditions may include Alzheimer’s Disease (ALZ), Lewy Body Dementia, Multi-infarct Dementia, CADASIL Dementia and others. Patients are assigned to arms that may use BMSC intravenously, intravenously and intranasally or intravenously with Near Infrared Light (NIR) therapy. The scientific literature reports on the potential value of BMSC as well as NIR in treating cognitive issues.