ADM Diagnostics, Inc. (ADMdx) has been awarded a two-year $1.96 million Phase II Small Business Innovation Research (SBIR) grant from the National Institutes of Aging (NIA) to develop a diagnostic test to detect the effects of repeated head impact upon the brain, and to differentiate these effects from Alzheimer's disease. Repeated sub-concussive impact to the head, such as that occurring in contact sports, military, falls, or domestic abuse, can cause changes to the brain. These changes can in certain cases involve progressive damage that leads to depression, mood swings, and/or dementia like symptoms. There are no diagnostics currently available to measure these effects or to diagnose during life when a person is developing Chronic Traumatic Encephalopathy, which occurs when abnormal tau begins to spread in the brain along with other effects.