i did have jody scan the one book from germany that explains the 6 months of bed rest, etc....otherwise i seen a pbs type show many years ago where old people retired to cave for many months and when they returned, they were young again and it mentioned rest.
the book will probably make it on the website later this year and explains in detail how to build a new body via fasting and 6 months of rest etc... i found the book interesting and truthful, but will not suggest anyone ever waste 6 months of life in bed!