Review: Dr. Preston provides a much deeper insight
Rating: 5 out of 5
Date: 01 29, 2013
A very thought provoking read.  As a 52 year old male, Dr. Preston provided me a much deeper insight into the changes I have personally experienced over the past couple of years.  I understand why my energy level decreased and why supplements and creams have helped me regain some of the energy I had lost.  A insightful and thought provoking read.