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  2. Puberty - Wikipedia

    en.wikipedia.org/wiki/Puberty

    [9] [10] [11] Puberty that starts earlier than usual is known as precocious puberty, and puberty which starts later than usual is known as delayed puberty. Notable among the morphologic changes in size, shape, composition, and functioning of the pubertal body, is the development of secondary sex characteristics, the "filling in" of the child's ...

  3. Adolescence - Wikipedia

    en.wikipedia.org/wiki/Adolescence

    In comparison to girls, it can be tricky to define when exactly sexual development in boys begins. For boys, puberty typically takes around 5 years to finish, as opposed to just 3 + 1 ⁄ 2 years for girls (menarche). By this point in time, they have already experienced their growth spurt and there are evident changes in their body shape ...

  4. Secondary sex characteristic - Wikipedia

    en.wikipedia.org/wiki/Secondary_sex_characteristic

    The general structure and shape of the body and face, as well as sex hormone levels, are similar in preadolescent boys and girls. As puberty begins and sex hormone levels rise, differences appear, though some changes are similar in males and females.

  5. Development of the human body - Wikipedia

    en.wikipedia.org/wiki/Development_of_the_human_body

    [20] [21] Puberty which starts earlier than usual is known as precocious puberty, and puberty which starts later than usual is known as delayed puberty. Notable among the morphologic changes in size, shape, composition, and functioning of the pubertal body, is the development of secondary sex characteristics , the "filling in" of the child's ...

  6. Child development - Wikipedia

    en.wikipedia.org/wiki/Child_development

    As genetic factors and events during prenatal life may strongly influence developmental changes, genetics and prenatal development usually form a part of the study of child development. Related terms include developmental psychology , referring to development from birth to death, and pediatrics , the branch of medicine relating to the care of ...

  7. Why your hair and eye colors change

    www.aol.com/news/2014-07-23-why-your-hair-and...

    Hair colors can change well into puberty, as some genes aren't "switched on" until the hormones flood the body in adolescence. Eventually, usually in the 30s, human hair stops producing melanin ...

  8. Gonadarche - Wikipedia

    en.wikipedia.org/wiki/Gonadarche

    Puberty usually begins around ages 10—11 in females and around ages 11—12 in males. [7] Body weight and nutrition status is evidenced to have an effect on puberty onset as well, due to some input from adipose tissue hormonal signaling. [8] Puberty involves both the processes of gonadarche and adrenarche. [6]

  9. Fed Chair Powell says he won't resign if Trump asks him to ...

    www.aol.com/fed-chair-powell-says-wont-202841242...

    During the event, Powell generally avoided answering media questions about the Nov. 5 election, in which Trump defeated Vice President Kamala Harris.

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