Anonymous13 days ago
A study of nearly two million Medicare patients found that cerebral amyloid angiopathy (CAA) — an incurable condition involving protein buildup in brain blood vessels that affects up to 23% of older adults — is associated with a fourfold increase in dementia risk within five years. The findings, presented at the International Stroke Conference 2026, highlight a significant but underdiagnosed risk factor for cognitive decline, though the study has not yet been peer-reviewed and relied on administrative diagnostic codes rather than brain imaging.