You may often hear the term "teenager", it usually refers to a group of people between the ages of 10 and 19 who are in the transition stage from childhood to **, which is also the most important stage in life. But do you know how the concept of "teenagers" came about? Does it have any basis and significance? Today we are going to talk about the age definition of teenagers and look at its history and current situation.
The word adolescent has not always existed, it has been born and evolved with the change and development of society. In ancient times, people's age division was relatively simple, generally only divided into three stages: children, ** and the elderly. A child is a person who is a minor, ** is an adult person, and an elderly person is an elderly person. The criteria for adulthood are also not fixed, some are based on physical development, some are based on social roles, and some are based on legal provisions. For example, in ancient China, when a man was twenty years old and a woman was fifteen years old, they were considered to be adults, and they could perform a coming-of-age ceremony and assume certain responsibilities and obligations. In ancient Western times, men were considered to be adults at the age of fourteen and women at the age of twelve, and could get married, inherit property, participate in politics, etc.
With the progress of society and the development of science and technology, people's life expectancy has been extended, the level of education has improved, the social division of labor has become complex, and people's age division has become more detailed and diverse. At the end of the 19th century and the beginning of the 20th century, the concept of "youth" began to appear in some countries, which refers to the period of time between adulthood and middle age, which is now called about 18 to 40 years old. Young people are a dynamic, creative and responsible group, they are the main force of society and the agents of social change. In the mid-20th century, with the end of World War II, the concept of "adolescence" began to emerge in some countries, which refers to the period of time between adolescence and adulthood, which is now what we call around the age of 10 to 19. Teenagers are a group with characteristics, problems and needs, they are the hope of society and the focus of social attention.
The emergence of the concept of youth is a kind of awareness and attention of society to human development, and it is also a kind of exploration and understanding of human beings themselves. This stage of adolescence is the most critical stage in life, which involves physical, psychological, social and other changes and growth, and also affects the future of individuals and the development of society. The age definition of adolescents is not static, it will adjust and adapt with the changes and development of society. Currently, the World Health Organization (WHO) defines adolescents as people between the ages of 10 and 19, which is a relatively common and accepted standard. The basis of this criterion is mainly considered from three aspects: physiological, psychological and social. From a physiological point of view, around 10 years old, is the age when the human body begins to enter puberty, and puberty is an important stage of human development, which involves changes in sexual organs, reproductive system, endocrine system, etc., and also affects changes in height, weight, appearance, etc. The end of puberty, generally around the age of 18, is when the development of the human body is basically completed and the level of maturity is reached. From a psychological point of view, around the age of 10, it is the age when people's cognitive ability begins to develop, when people begin to have abstract thinking, logical thinking, critical thinking and other abilities, and also begin to have self-awareness, self-evaluation, self-control and other abilities. The development of these abilities enables people to better understand themselves and the world, and also enables them to better express themselves and communicate. Psychological development is generally around the age of 19, when people's psychology is basically stable, and a certain personality and values are formed. From a social point of view, around the age of 10, it is the age when people begin to leave the family and enter the society, when people begin to have more social roles, such as students, friends, group members, etc., and also begin to have more social responsibilities, such as study, work, participation, etc. The assumption of these roles and responsibilities enables people to better adapt to society and to better contribute to society. Social adaptation is generally around the age of 19, when people have basically completed the transition from children to ** and can live and work independently.
To sum up, we can see that the age definition of adolescents has a certain scientific basis and social significance, it is a unique stage of human development, and it is also an important period for laying the foundation of health. Adolescent health encompasses physical, cognitive, psychosocial, behavioural patterns, sex education, health services and the environment, and requires the provision of information, services and support, as well as the prevention and prevention of death, illness and injury. As teenagers, we should cherish this stage, actively learn, grow, explore, and innovate to prepare ourselves for the future and the development of society. As a society, we should care about this stage, respect, understand, support and guide young people, and provide them with a healthy, safe, fair and inclusive environment.