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Adolescence is a time of rapid cognitive development. [ 60] Piaget describes adolescence as the stage of life in which the individual's thoughts start taking more of an abstract form and the egocentric thoughts decrease, allowing the individual to think and reason in a wider perspective. [ 61]
Teenager (word) Teenager is a numeric term used to describe a person from the ages of 13 to 19 years. [ 1] Although it is used to distinguish people by the decade of their life, it excludes ages 10–12 even though they are part of the same decade, since the numbers 10-12 do not include the suffix - teen. Instead, people aged 10 to 12 years old ...
Generally, the term is restricted to those close to reaching age 13, [1] especially ages 9 to 12. [3] Tween is an American neologism and marketing term [10] for preteen, which is a blend of between and teen. [9] [11] People within this age range are variously described as tweens, preadolescents, tweenies, preteens, pubescents, middle schoolers ...
In medicine and the social sciences, a young adult is generally a person in the years following adolescence, sometimes with some overlap.Definitions and opinions on what qualifies as a young adult vary, with works such as Erik Erikson's stages of human development significantly influencing the definition of the term; generally, the term is often used to refer to adults in approximately the age ...
Although there is a wide range of normal ages, females typically begin puberty around age 10½ and end puberty around 15–17; males begin around ages 11—12 and end around 16–17. [1] [2] [3] Females attain reproductive maturity about four years after the first physical changes of puberty appear. [13]
Between 2 and 3 years of age, the child is able to refer to themself as "me", combine nouns and verbs, use short sentences, use some simple plurals, answer "where" questions, and has a vocabulary of about 450 words. [131] By age 4, children are able to use sentences of 4–5 words and have a vocabulary of about 1000 words. [131]
Over 1,100 teenagers, mostly aged 18 or 19, [ 1] give birth every day in the United States. 23 million per year in the developed world, 2018. [ 3] Leading cause of death in 15 to 19 year old females, 2018. [ 3] Teenage pregnancy, also known as adolescent pregnancy, is pregnancy in a female under the age of 20.
Youth in the United States. Youth is an age group in the demographics of the United States. In 2010, it was estimated that 20.2% of the population of the United States were 0–14 years old (30,305,704 females and 31,639,127 males). [ 1]