SMRTR Science & EngineeringMay 5, 2026Interesting Engineering

Human heart regrows muscle cells after attack, world-first study confirms

SMRTR summary

A world-first study from the University of Sydney confirms that human hearts grow new muscle cells after a heart attack, overturning the long-held belief that heart damage is permanent. While the regeneration is limited, researchers aim to amplify it, potentially reducing the need for heart transplants.

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