How do you divide people s ages?

Age segmentation in China:

1.Toddler. 0 years old — years old.

1) Infancy 0 3 weeks month.

2) Childhood: 4 weeks and months-years;

2.Childhood. years — 6 years old.

Infant post-6 years;

3.Juvenile. 7-17 years old.

1) Initiation period: 7-10 years old;

2) 11-14 years old in the rebellious period;

3) The growth period is 15-17 years old.

4.Youth. 18-40 years old.

1) Adolescence 18-28 years old;

2) Mature period 29-40 years old;

5.Prime. 41-48 years old.

Fruitful period 41-48 years old;

6.Midlife. 48-65 years old.

1) Stable period 49-55 years old;

2) adjustment period 56-65 years old;

7.Old age. After the age of 66.

1) 67-72 years old;

2) Middle-aged and old age: 73-84 years old;

3) Old age after the age of 85.

A person's life is divided into 4 stages, namely childhood, youth, middle age, and old age.

1. Juvenile: refers to a young person who has a slight self-meaning and is the initial stage of growth.

2. Youth: refers to the stage of adolescence and early adulthood, having their own ideas, and doing their own thing.

3. Middle-aged: At the stage of having a family and children, you must not only have children, but also undertake social work.

4. Old age: After retirement, due to the aging process, the mentality must be adjusted and adapted accordingly.

Human age is divided into several stages, no matter what stage of life we are in, we all need to live with our hearts, and every stage of life is worth remembering for us. Let's take a look at how many stages a person's age is divided into.

According to the new age segment, a person's life is divided into six age groups:

Newborn) - 6 years old for infants;

12 years old for children;

17 years old for teenagers;

45 years old is a young man;

69 years old is middle-aged;

6. > 69 years old is the elderly.

Infancy, childhood, adolescence, early youth, middle age, old age.

The age groups of people are divided into: childhood, adolescence, youth, middle age, and old age.

1. Childhood. 0 years old - 6 years old. 1) Infancy 0 3 weeks month. 2) Childhood: 4 weeks and months-years; (3) Early childhood: after the age - 6 years old.

2. Teenagers. 7-17 years old. 1) Initiation period: 7-10 years old; 2) 11-14 years old in the rebellious period; 3) The growth period is 15-17 years old.

3. Youth. 18-40 years old. 1) Adolescence 18-28 years old; 2) Mature period 29-40 years old;

4. Middle-aged. 41-65 years old. (1) Fruitful period 41-48 years old; (2) Stable period 49-55;(3) The adjustment period is 56-65 years old.

5. Old age. After the age of 66. 1) 67-72 years old; 2) Middle-aged and old age: 73-84 years old; 3) Old age after the age of 85.

The UN's statement.

The United Nations General Assembly defines "youth" as those between the ages of 15 and 24 years inclusive. The United Nations International Year of Youth was launched globally in 1985 and was defined specifically for the International Year of Youth. All statistics on youth published by the United Nations, such as the annual statistical yearbooks published by the United Nations system on demographics, education, employment and health, are based on these definitions.

The age group of people is divided into: 0 (newborn) - 6 years old for infants and young children; Adolescents aged 7-17; 18-45 years old for young people; 46-69 years old is middle-aged; > 69 years old is the old age.

Internationally, the population is usually grouped unequally according to 0 14 years old, 15 64 years old, and over 65 years old, which are called juvenile population, prime population, and elderly population, and the juvenile population coefficient is calculated based on the total population, the middle-age population coefficient and the elderly population coefficient, and the dependency coefficient is calculated on the basis of the middle-aged population, that is, the dependency coefficient = (juvenile population + elderly population) prime-age population, and the population in the age group of 15 and 24 years old is also called the youth population in the world.

According to the new age segment, a person's life is divided into six age groups:

Newborn) - 6 years old for infants;

12 years old for children;

17 years old for teenagers;

45 years old is a young man;

69 years old is middle-aged;

6. > 69 years old is the elderly.

With the increase in the average life expectancy of the global population and the intensification of aging, the WHO has redefined the age staging, stipulating:

Under the age of 44 are young people, 45 to 59 years old are middle-aged people (prime of life), 60 to 74 years old are young and old, 75 to 89 years old are real old people, over 90 years old are long-lived people, and over 100 years old are centenarians.

Other ways to divide age:

1. The ancients divided age in this way:

Childhood is under 12 years old, over 12 years old is called the age of the juvenile horn 20-year-old weak crown, that is, youth, some people think that after 18 for the youth 30 and stand, it enters middle age, 40 is not confused, called the prime of life 50 and know the destiny of heaven, of course, it is considered old There are 60 flowers, 70 ancient rare. 80, 90 years old, 100 years old.

2. According to developmental psychology:

Infant 0-1 years, infancy 1-2 years, toddler 2-3 years, preschool age, early school age, adolescence 30 years, middle age 30 50 years, old age after 50 years.

The above content reference: Encyclopedia - Age.

The above content reference: Encyclopedia - New Age Segment.

1.Divided by calendar age

That is, chronological age or chronological age - the age calculated according to the calendar after birth, also known as the actual age, is the most commonly used method of calculating age, simple, easy to grasp, and is also an objective record that does not depend on people's will.

2.Divided by biological age

Lifespan) is physiological age: This is the age calculated according to the normal physiological and anatomical development state of the human body, indicating the actual degree of aging of the individual's tissue structure and physiological function, which can be used to predict the future health status of an individual and estimate its lifespan. Such as:A person who is actually 60 years old may have a biological age of 60 years, or 50 years, or 70 years.

3.Divided by mental age

It is a term in the psychological "intelligence test", which refers to the measurement of the intelligence level of the human body according to the results measured by the standardized intelligence test scale, and the absolute level of intelligence can be seen by comparing the psychological age with the calendar age.

4.Divided by relative age

That is, the relative effective age (lifespan) refers to the time and space occupied by various life activities, including mental activities, that are different from other living beings (mainly including animals), controlled by the highest souls, conform to the ethical and moral norms of human society, and are conducive to the benign development of nature and society.

Interpretation

Age, which refers to the length of time a person has lived from birth to the time of calculation, is usually expressed in years. Age is a natural sign with a biological basis, and it is an irresistible natural law that after a person is born, as the sun and the moon pass, the age also increases.

Childhood, adolescence, youth chaos, middle age, old age.

The United Nations World Health Organization (WHO) has recently made new regulations on the criteria for classifying age groups through a global survey of human fitness and life expectancy. The regulations divide a person's life into five age groups, namely: young people under the age of 44, middle-aged people between the ages of 45 and 59, young people between the ages of 60 and 74, old people between the ages of 75 and 89, and long-lived people over the age of 90.

Generally speaking, the current standard in China is: 0 (newborn) - 6 years old for infants; Children aged 7-12; 13-17 years old for teenagers; 18-45 years old for young people; 46-69 years old is middle-aged; > 69 years old is the old age.

The division of these five age groups will postpone the aging period of human beings by 10 years, which will have a positive impact on people's mental health and anti-aging will.