Age division in China

0-6 years old in infancy, 7-12 years old in childhood, 0/3-17 years old in adolescence, 0/8-45 years old in adolescence, 46-69 years old in middle age and over 69 years old.

1, 0 to 6 years old in infancy: from 0 to 6 years old, from newborn to crawling to walking to entering preschool education, learn basic social skills and self-care ability.

2. Childhood 7 to 12 years old: children learn basic knowledge and skills in primary school, and gradually establish a knowledge of the world.

3. 13- 17-year-old adolescence: in junior high school and senior high school, teenagers face great changes in physiology and psychology, and begin to form their own values and outlook on life, and have a preliminary plan for their future career and life.

4. Young people 18 to 45 years old: Personal physical and psychological maturity is a critical period for career development. He has finished his studies and started to work in society, pursuing career development and personal growth.

5.46 to 69 years old: I have accumulated rich work experience and life experience and am at the peak of my career. I have begun to pay attention to family, health and social responsibility to prepare for retirement.

Over 6.69 years old: individuals gradually retire, and their life focus shifts to family, health and personal hobbies, and they begin to enjoy their old age, reflect on their life experiences and pass on their wisdom to the next generation.