Summary
Development of Alzheimer's disease and related dementias (ADRD) is multifactorial, and some causal factors can be influenced or modified. Recently, the Lancet Commission included traumatic brain injury (TBI) in its list of 12 key potentially modifiable ADRD risk factors. TBI is a very common injury among older adults, resulting in over 123,000 hospitalizations and 485,000 emergency department visits annually. Importantly, rates of TBI are rapidly increasing in this population. TBI results in cognitive impairment and increases risk for both Alzheimer's disease and fronto-temporal dementia. Furt
