AMERICAN HEART ASSOCIATION Embargoed until 4 a.m. CT/5 a.m. ET Wednesday, August 10, 2022 DALLAS, August 10, 2022 — Structural or functional abnormalities within the heart’s left atrium, with or without symptoms, may increase a person’s risk of developing dementia later in life by 35%, according to new research published today in the Journal of the American...