define ageing........
Answers
Aging (Geriatric psychology terms). Foreign psychology circles have different interpretations of the meaning of aging and ageing . In fact, the two are closely related and different.
- Aging refers specifically to a series of degenerative changes in the physiological and psychological functions of human growth and development, maturity to the latter stage of the decline process; and aging is the end of aging.
The process of aging changes is also called "aging". The aging of humans has two meanings, namely the aging of individual individuals and the aging of human groups. Individual aging refers to the declining physiological, psychological and social functions of human beings with age. That is, with the increase of natural age, the structure and function of human cells, tissues and various organs are aging. Working ability is getting weaker and weaker until life stops. This is an irreversible natural law. According to modern scientific research, people begin to age after sexual maturity. At first, the speed of aging is slower, and the aging process is accelerated after the age of 50. In different individuals, the time and speed of aging start are different. Different organs of the same individual have different time and speed of aging start. For example, skin, muscle and other aging occur earlier, but Aging of kidney, brain, etc. occurs later. This difference is determined not only by genetic factors, but also by acquired factors or the influence of the external environment. For example, smoking can promote the aging of the skin and lungs; proper participation in physical exercise can delay the aging of various organs of the human body. Group aging refers to changes in the age structure of the total population. That is, the proportion of the elderly population is constantly increasing, which is called "group aging" or "population aging". This kind of group aging is constrained by social laws and is not endless. It can be adjusted by people. When a group of people born during the peak period of death die or the birth rate rises again, the aging process of the population will reverse and gradually rejuvenate.