I'm a housewife approved pharmacy It is abundantly evident that no single strategy will either inhibit aging or slow the progress of dementia. A science based strategy involving complementary life style modifications, diet and supplements, and medicine is needed.  A very interesting new book outlines a comprehensive prescription to extend life and health span.  The book is by Dr Betz, and on amazon. The title is Resveratrol, is there a limit to human lifespan?  Betz is an authority who lectured to physicians on the subject and the book is well worth the time and cost.