Heart, Heal Thyself?

So far, stem cells have not delivered the results scientists hoped for. But excitement is still rising

The dream of medical science is to train the body to repair itself in the face of disease or trauma, and the main focus of this dream is the heart. For five years, teams of doctors around the world have been trying to coax adult stem cells, the body's innate repair kit, to regenerate damaged heart tissue after a heart attack or other coronary disease.

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