Old people often have limited regenerative abilities and are more susceptible to disease, syndromes, and sickness than younger adults.The organic process of ageing is called senescence, Definitions of old age include official definitions, sub-group definitions, and four dimensions as follows. At what age old age begins cannot be universally defined because it differs according to the context.Many of the properties in Altinkum are built by our own construction company.All our builders have had a full company report to check the status of being a fully legal operating company, we too are a fully licensed company and specialise in the Agean area.However, for its study of old age in Africa, the World Health Organization (WHO) set 50 as the beginning of old age.At the same time, the WHO recognized that the developing world often defines old age, not by years, but by new roles, loss of previous roles, or inability to make active contributions to society.Old age comprises "the later part of life; the period of life after youth and middle age . Most developed-world countries have accepted the chronological age of 65 years as a definition of 'elderly' or older person.
The distinguishing marks of old age normally occur in all five senses at different times and different rates for different persons.
Old age refers to ages nearing or surpassing the life expectancy of human beings, and is thus the end of the human life cycle.
Terms and euphemisms include old people (worldwide usage), seniors (American usage), senior citizens (British and American usages), older adults (in the social sciences), the elderly, and elders (in many cultures—including the cultures of aboriginal people).
Especially in less formal contexts, it is often abbreviated as "senior(s)", which is also used as an adjective.
In commerce, some businesses offer customers of a certain age a "senior discount".