Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
Psychology
The average life expectancy of the Japanese is 81 years for men and 87 years for women. According to a research report, more than half of the people over 40 years of age now live to 95 years of age. This is truly the "age of 100 years of life." People in their 40 s are still at the end of their life. People in their 40 s are at the end of their life. People in their 40 s are at the end of their life. And people in their 40 s are at the end of their life. People in their 40 s still have mental flexibility, and they have the time and physical strength to make a big difference in their life. People in their 40 s have experience, and they have wisdom that is not just about being impatient. That is why the level of happiness after their 40 s changes greatly depending on how they spend their 40 s. This is a book that gives people in their 40 s their 40 s.