Adolescence is a process from adolescence to adulthood. Adolescence is a period of physical development and emotional initiation. It is also a key period for the formation of ideals, character and outlook on life.
People, from small to large, are always growing. You may be surprised: the growth of the human body is fast and slow, with ups and downs. This "fluctuation" is the most prominent twice in one's life, which is called the growth peak in medicine. The height and weight of the fetus grow rapidly from 9 years old to 1 month old. The second growth peak is adolescence. Puberty not only has a rapid increase in height and weight, but also has qualitative changes in the body. This is a leap process from quantitative change to qualitative change, and it is also a transitional stage from childhood to adulthood. Childhood and adulthood have very different bodies. Not only are there great differences in height and weight, but also in internal organs and their functions. For example, in childhood, although the number of brain cells is basically available, the function is far from perfect, and the cells are not mature. In case of rapid changes in the natural environment or bacterial invasion, the brain nerve often fails to cope with and command. However, as soon as they enter adulthood, the situation is completely different. At this time, the brain nerve not only improved its ability of analysis and understanding, but also greatly strengthened its ability to respond to "special situations". Obviously, the brain nerve function of adults is much more perfect and complete. For another example, in childhood, various organs and tissues were still quite weak, and it was not enough for them to deal with germs by themselves. Therefore, at this time, the body's lymphatic system is very developed. Before the age of 10, it is mainly used to resist the invading bacteria and toxins: either swallow the bacteria or kill the bacteria with its chemical weapon - "antibody". However, in adulthood, the disease resistance of the human body cannot be arranged by the lymphatic system. There are more defense methods and stronger disease resistance, which is significantly different from childhood. However, this structure and function of the adult human body can not be crossed from childhood. In the middle, it must undergo a qualitative change of sudden growth. Without adolescence, the human body cannot mature. So, when does puberty begin? Generally speaking, Chinese teenagers, from 12 to 17 or 18, are puberty; From the age of seventeen or eighteen to twenty-five, it is the later stage of youth, or youth. Broadly speaking, adolescence and late adolescence can be called adolescence. Due to the influence of factors such as heredity, physical activity, nutrition and disease, there are exceptions such as early maturity and late development.
The difference between adolescence and late adolescence is only the difference in the degree of development and maturity. If adolescence has a rudiment of development, then the later stage of adolescence will make this development more perfect and close to complete maturity. Adolescence is the turning point of physical growth and the finalization stage of physical health. We should pay great attention to adolescent health and make the body develop more healthily.
In short, adolescence is a period of rapid physical and psychological development. This stage plays a vital role in a person's future path. We should form correct values, listen to our inner voice, and do what we think is right. Your youth is up to you - you can make mistakes, but don't make yourself regret.