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Biologically, an adult is a human or other organism that has reached sexual maturity. In human context, the term adult has additional meanings associated with social and legal concepts. In contrast to a legal minor, a legal adult is a person who has attained the age of majority and is therefore regarded as independent, self-sufficient, and ...
The concept of adulthood has legal and socio-cultural definitions. The legal definition [4] of an adult is a person who is fully grown or developed. This is referred to as the age of majority, which is age 18 in most cultures, although there is a variation from 15 to 21. The typical perception of adulthood is that it starts at age 20 or 21.
Cortical white matter increases from childhood (~9 years) to adolescence (~14 years), most notably in the frontal and parietal cortices. [8] Cortical grey matter development peaks at ~12 years of age in the frontal and parietal cortices, and 14–16 years in the temporal lobes (with the superior temporal cortex being last to mature), peaking at about roughly the same age in both sexes ...
Most said that being an adult begins when you can pay you own bills (56%), be financially independent (45%), and put responsibilities over fun (38%). Other markers include moving out and joining ...
The definition and determination of maturity has been applied to the issue of criminal responsibility of juvenile offenders and to a number of legal ages. The age of majority, the most broadly applied legal threshold of adulthood, is typically characterized by recognition of control over oneself and one's actions and decisions. The most common ...
The number of age classes, the determining ages and the terminology vary significantly between traditions. Even within a single society, a person may belong to several overlapping grades in different spheres of life, e.g. per year a different school class and yet for several years on end a child, then an adolescent, finally an adult.
“In the early 2030s we can expect to reach longevity escape velocity where every year of life we lose through aging we get back from scientific progress,” Kurzweil told The Guardian. “And as ...
Coming of age, a very young person's transition from childhood to adulthood; Age of majority, the threshold of adulthood as it is conceptualized (and recognized or declared) in law; Puberty, the process of physical changes by which a child's body matures into an adult body capable of sexual reproduction