Scientists turn spinach leaves into heart tissue Posted on March 29, 2017 by Los Angeles 1 Los Angeles Los Angeles News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: A team of scientists at the Worcester Polytechnic Institute in Massachusetts have transformed spinach leaves into beating heart tissue. 1 Los Angeles Los Angeles News & Search 1 News - 1 eMovies - 1 eMusic - 1 eBooks - 1 Search Search for: