This book comprises the information of the four teachings of Dr. Grigori Grabovoi: Ⅰ REJUVENATION - ⅡREJUVENATION FOR ETERNITY - Ⅲ REJUVENATION FOR ETERNAL LIFE - Ⅳ THE METHODS OF REJUVENATION FOR ETERNAL LIFE. A great contribution to your knowledge and you will be able to rejuvenate!