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, the elderly (worldwide usage), seniors (American usage), senior citizens (British and American usages), older adults (in the social sciences).
Biologically, an adult is a human or other organism that has reached sexual maturity. In human The time of puberty varies, but usually begins around 10 or 11 years old. Girls typically begin the process of puberty at age 10 or 11, and boys at.
Gerontologist. Feb;42(1) A comparison of young, middle-aged, and older adult treatment-seeking pathological gamblers. Petry NM(1).