The phrase "to damage the heart" means causing harm or injury to the physical organ responsible for pumping blood and keeping us alive. Full definition
MRI measured the mass of damaged heart tissue in all patients. (sciencedaily.com)
If this happens, it can damage heart muscle and block small blood vessels. (sciencedaily.com)
By helping cells switch their type, we may have discovered a new way to repair damaged hearts, and potentially revolutionize the future of medicine. (gladstone.org)