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  2. Why Is Puberty Starting Earlier? New Research Points To ... - AOL

    www.aol.com/why-puberty-starting-earlier-earlier...

    What causes early puberty? ... found that the average age that girls had their first periods decreased from 12.5 years old in 1950 to 1969 to 11.9 years old in 2000 to 2005.

  3. Precocious puberty - Wikipedia

    en.wikipedia.org/wiki/Precocious_puberty

    African-American girls are especially prone to early puberty. [18] Though boys face fewer problems from early puberty than girls do, early puberty is not always positive for boys. Early sexual maturation in boys can be accompanied by increased aggressiveness due to the surge of pubertal hormones. [57]

  4. 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 ...

  5. 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 ...

  6. Early puberty may be linked to a common chemical used in ...

    www.aol.com/news/early-puberty-may-linked-common...

    Starting puberty significantly early — younger than age 8 in girls, 9 in boys — may have health effects lasting into adulthood, including higher risks of breast cancer, diabetes and heart disease.

  7. Musk ambrette may be linked to rise in early puberty, study ...

    www.aol.com/news/common-chemical-found-household...

    Puberty starting earlier in girls and boys Research from 2020 shows that the average age of starting puberty for girls has decreased by about three months each decade from 1977 to 2013.

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