A silent buildup of protein in brain blood vessels may quietly quadruple the risk of dementia. Credit: AI/ScienceDaily.com Research Highlights A large U.S. study involving nearly 2 million older adults found that cerebral amyloid angiopathy, a condition in which amyloid proteins accumulate in brain blood vessels, is linked to a much higher risk of developing dementia within five years. The increased dementia risk was seen in people with cerebral amyloid angiopathy whether or not they had ever