Human Heart Muscle Can Regrow After a Heart Attack, Study Finds
Researchers have shown for the first time that human heart muscle cells can regrow after a heart attack. The finding overturns the long-standing idea that damaged areas of the heart are completely incapable of regeneration.
The study demonstrates that the human heart retains some natural ability to repair itself following cardiac injury. This challenges decades of medical consensus holding that heart muscle, once damaged, cannot be restored.
Scientists involved in the research now hope to identify ways to dramatically boost this natural repair process. If successful, this could open a new path toward treatments for heart failure—a condition that affects millions of people worldwide and has long been considered irreversible.
The discovery marks a significant shift in understanding cardiac biology. Rather than viewing heart damage as permanently irreversible, researchers can now explore approaches that enhance the organ's innate healing capabilities.