Published: Jun 09, 2026 Category Social Media Source https://www.facebook.com/amyloidosisnewstoday/posts/attr-cm-occurs-when-misfolded-proteins-build-up-in-the-heart-making-it-difficult/1537467761730950/ Details ATTR-CM occurs when misfolded proteins build up in the heart, making it difficult for the muscle to work properly.