Within a generation, we likely will not just hear of things like 3D-printed hearts serving as models, but as real, functioning organs.
The world of 3D printing possibilities keeps expanding, from the purely ornamental to the truly useful. This technology has already made a difference in healthcare with prosthetics and replacements for bones, and even models of patients' hearts that improve the outcome of surgery. In the future, the 3D-printed heart may itself be alive, as researchers have now discovered how to print living tissue.
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