Book (Practical) Psychology Psychiatrists Find Three Happy Ways to Create Best Lives from Latest Science

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Psychology
『 Output Taizen 』 (460000 copies) and 『 Stress-Free Super Taizen 』 (160000 copies) This is the latest work with all the efforts of the bestselling author of this book! This is not "Theory of Happiness" but the first "Practical Book of Happiness". "Happiness" was a "substance in the brain"! All the problems of the coronavirus crisis, the age of 100 years of life, AI, and smartphone dependence are solved in one book! Only the habit that can be done easily! Based on the latest data and evidence, this is a completely new book that teaches you how to enrich your life in concrete and easy-to-understand ways!