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  2. Tanner scale - Wikipedia

    en.wikipedia.org/wiki/Tanner_scale

    In the nearly fifty years since those studies, the ages at which children are beginning puberty has only declined: (as of 2018) "The age of puberty, especially female puberty, has been decreasing in western cultures for decades now [...] for example, at the turn of the 20th century, the average age for an American girl to get her period was 16 ...

  3. All About Us: Living and Growing - Wikipedia

    en.wikipedia.org/wiki/All_About_Us:_Living_and...

    Unit 3 — Age 9-11 Girl talk | Boy talk | Let's talk about sex Unit 4 — Age 11-13 Puberty | Body image | Making the right choices As of July 7, 2012, the DVDs were removed from the Channel 4 product catalogue as a result of the government's announcement that the PSHE curriculum is under review.

  4. Template:Testosterone levels in males and females - Wikipedia

    en.wikipedia.org/wiki/Template:Testosterone...

    Printable version; In other projects ... Just before puberty: 3–10 ng/dL* 0.104–0.347 nmol/L* <10 ng/dL* ... Free testosterone Stage Age range Male Female Values ...

  5. Puberty - Wikipedia

    en.wikipedia.org/wiki/Puberty

    Although there is a wide range of normal ages, females typically begin the process of puberty around age 10½; males at ages 11½—12. Puberty generally ends between 15—17 for females and 16–17 for males. [1] [2] [3] Females attain reproductive maturity about four years after the first physical changes of puberty appear. [13]

  6. Development of the human body - Wikipedia

    en.wikipedia.org/wiki/Development_of_the_human_body

    Until the maturation of their reproductive capabilities, the pre-pubertal physical differences between boys and girls are the external sex organs. On average, girls begin puberty around ages 10–11 and end puberty around 15–17; boys begin around ages 11–12 and end around 16–17.

  7. Study of age of puberty in girls suggests links with weight gain

    www.aol.com/study-age-puberty-girls-suggests...

    In girls, puberty and periods normally start between the ages of 10 to 15, but experts say this has been getting earlier in recent decades. In girls, puberty and periods normally start between the ...

  8. Adolescence - Wikipedia

    en.wikipedia.org/wiki/Adolescence

    Upper body of a teenage boy. The structure has changed to resemble an adult form. Puberty is a period of several years in which rapid physical growth and psychological changes occur, culminating in sexual maturity. The average age of onset of puberty is 10–11 for girls and 11–12 for boys.

  9. The Care and Keeping of You - Wikipedia

    en.wikipedia.org/wiki/The_Care_and_Keeping_of_You

    A similar book aimed at boys between the ages of nine and twelve, Guy Stuff: The Body Book for Boys, was written by Natterson. It discusses the physical, social and emotional changes that boys may experience during puberty, as well as general hygiene and health issues commonly encountered during adolescence. [15] [16]

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