This pocketbook format gives an understanding of how mood and the feeling of happiness are formed. It contains a revolutionary approach to increasing your life satisfaction level. A new format for the most important and beloved books. The compact and lightweight pocketbook is convenient to take on the road, travel, or a walk. At the same time, we have preserved the quality of our books. Under the soft cover is white paper, a bookmark, and unique design. Nothing will interfere with enjoying reading without compromises. We have all heard about the "happiness hormones" — dopamine, serotonin, oxytocin, and endorphin. But not everyone clearly understands how each of them works, why they are released, what reaction they cause in the body, and what explains the mood swings. This book will show how to "reprogram" your brain and activate the hormones that make you happy. Additionally, you will learn how to form new habits and trigger the action of "happiness hormones" by changing neural pathways. Dozens of exercises from the book will help you with this. From this book you will learn: — what lies behind the chemical processes in the brain that make us happy or unhappy; — how the "happiness hormones" work and what their role is; — how the brain forms habits — and why it is difficult to give up harmful ones; — how to form new behavior patterns using a 45-day plan. Features of the book: — Convenient and high-quality format — you can take the book anywhere. — Pocketbooks take up little space but bring great benefits. — The pocketbook series features the most important books from MIF. Who this book is for: For everyone who wants to finally understand what "happiness hormones" are and how they work. For everyone who wants to be happier and feel better.