http://www.frcblog.com/2011/05/human-neurons-from-skin-cells/

This blog is about scientists growing nerve cells from skin cells in a lab dish. They first tried it with mouse cells and the conversion worked. For the human conversion, you need to add four more genes to the skin cell. This is a major breakthrough for people who have had a stroke.

I never knew that nerve cells could be regenerated. I personally would have not thought about just adding more and more genes to the skin cells to make them into nerve cells. I think this stuff is cool and the fact that we are actually accomplishing these things is even cooler.