I am usually very skeptical about various claims that can be found in the books written by many "self-healers" and other gurus. The author however, does not over-promise in any chapter of his book, in spite of its catchy title.
It is a good compilation of safe-and-sound recommendations for longevity and healthy living. I did smile at some of them (walking bare footed, etc.) but even if I do not believe in their direct benefits, they might still bring about good results for those who do believe (placebo effect). In any case, none of the recommendations can in any way be harmful as most of the remedies contain products used by many of us on a daily basis.
Other advice, like proper food combination, periodic fasting, taking hot and cold baths, using sauna, drinking pure mineral water, taking daily walks, etc, are just common sense and indeed very beneficial for our mental and physical conditions. By the way, the author clearly states that he is not a medical doctor himself but that he just compiled the wisdom of many nations - from Europe, via Tibet, to old China. As a result, some of the ingredients suggested in certain remedies can be difficult to obtain in North America. For example kefir. It is a dairy product, with well known health benefits, that is very popular in Europe but hardly ever obtainable in the US, except for specialty organic food shops.
There are a few Apendices at the end of the book. Some of them are too much on the side of "New Age" and does not really fit my analitical mind. However it might be of some interest for those who like to believe in astrology, Horoscope etc. I think it is fine to read it as an interesting trivia, especially since this is presented in the Apendices -- clearly outside of the main body of the book.
The author was educated as a biologist and chemist, but he devoted his life to studying human body and he is a well known authority on healthy living documented by the fact the he was the head of Center of Health Sciences in Moscow. I do believe that this book will be very beneficial for many people, especially for those jumping from one fad diet to another. As the author rightly pointed out - your health and wellbeing are in your own hands.
Many methods and remedies suggested by the author are indeed valuable and effective. They are presented for the reader to explore. Please use them wisely! On the scale of 0 to 10 I give the book 9 points. Highly recommended reading! Another great book by this author that I also highly recommend is Cure the Incurable