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Researchers have discovered the human heart is capable of regenerating heart muscle after a heart attack, challenging long-standing beliefs that heart muscle damage is permanent and irreversible.
The findings, described as a “world-first,” could reshape how researchers and doctors think about recovery for heart health and heart failure.
New Finding Breaks New Ground
The study, published in Circulation Research in December 2025, was led by researchers from The University of Sydney, the Baird Institute, and the Royal Prince Alfred Hospital in Sydney.
