So… the water got too deep for me pretty quickly, but there are a lot of interesting observations made in this article. I thought you folks might enjoy seeing it.
The most interesting piece to me is that fasting downregulates mTOR and upregulates SIRT and autophagy. In short, these should lead to longer lifespan because your body does a much more thorough maintenance regiment triggered by the lack of caloric input. Plus the mental health improvements are interesting!