How to turn a spinach leaf into a human heart
(Timothy Vollmer/ creative commons)

Step one: detergent Spinach could be good for your heart in more ways than one. It’s packed with fiber, vitamin A, and the branching vasculature necessary for cells to absorb nutrients. Which is why bioengineers at Worcester Polytechnic Institute decided to try growing human heart cells on the scaffolding of a humble spinach leaf. And it…