Jeong Myeong-heon: Happiness Habit Diary

What leads to happiness? Harvard University has read a report that published "Symbols of Happiness" in a report by Professor George Baelant, who compiled this study, which made a study of human development during the 72 years that followed the change of researchers. I read the above article and realized that health and happiness are important, and that you're a walking walker, and you've been a happy life with every kind of walker and a good day, so I've recorded the habits and wisdom of living with weight/globulin/p.p.b./a day's worth of walking every day.

Korean title: 행복습관 diary

Korean author: 정명헌

Korean publisher: 생각의새싹편지

ISBN-13: 8809984110000