You are probably talking specifically about the four day diet cycle referenced in this article, but I want to point out that there are already many, many studie

You are probably talking specifically about the four day diet cycle referenced in this article, but I want to point out that there are already many, many studies supporting the link between calorie restriction and slow aging -- this literature review has links to many peer-reviewed papers: http://ajcn.nutrition.org/content/78/3/361 http://ajcn.nutrition.org/content/78/3/361