Summary

Heart failure often develops after a heart attack because excessive collagen-based scar tissue forms during repair. While collagen is necessary to reinforce scars, disease and chronic inflammation can cause overproduction, which stiffens the heart muscle and impairs its pumping ability. This stiffening process, called fibrosis, can also affect other organs like the liver, potentially leading to cirrhosis.

AI summaries can be wrong sometimes—always verify important details using the source article.