Scientists now believe that within a decade they will be able to 3D print a human heart. To be able to construct a new organ seems incredibly complex; however Stuart Williams (executive and scientific director of the Cardiovascular Innovation Institute in Louisville) states that the heart is likely to be the easiest of all organs to reproduce as it is essentially just a pump with tubes. The goal is not just to 3D print hearts, but to be able to do so in less than three hours! Fat cells are the intended material to use in the construction and with…