Scientists find hidden brain damage behind dementia

A University of New Mexico scientist is revealing what might be one of the most overlooked causes of dementia - damage in the brains tiny blood vessels. Dr. Elaine Bearer has created a new way to classify these changes, showing that many people diagnosed with Alzheimers also suffer from vascular damage that quietly destroys brain tissue. Even more surprising, shes finding microplastics inside the brain that appear linked to inflammation and memory loss.