I came across this story some time ago and I am just now getting around to posting it. Its subject may become a significant break through in longevity research. Or not. Time will tell. It apparently involves something secreted by stem cells. At the very least it’s good news for the mice involved in the research. 🙂
http://www.foxnews.com/opinion/2012/01/18/factor-x-have-finally-found-fountain-youth/
Just read the article on the linked page. The video embeded on the page seems to change. So it may not be about the same subject.