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That means almost 50% of the people needing a new heart to keep them alive won't get it. But now, scientists from Massachusetts General Hospital and Harvard Medical School have successfully grown a human heart from adult skin cells in a lab. In addition, researchers from Tel Aviv University have "printed" the world's first 3D vascularized engineered heart using a patient's own cells and biological materials. Their research may someday soon solve the shortage problem of hearts the world faces today.
In the study done by the scientists from Massachusetts General Hospital and Harvard Medical school, they grew a heart using stem cells then shocked it with an electric current to bring it to life.
Here's what they did: