This book was written based on the experience and knowledge of the author. It contains not only theory, but also practice. Recommendations for improving the quality of your life. Analysis of the problem and search for a solution, motivation, planning and goal setting. The book is a kind of manual that can be re-read many times and consolidate the knowledge gained. The administration of the liters website is not responsible for the information presented. There may be medical contraindications; consultation with a specialist is required.