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Early puberty also puts girls at a higher risk for teasing or bullying, mental health disorders and short stature as adults. [ 19 ] [ 39 ] [ 56 ] Girls as young as 8 are increasingly starting to menstruate , develop breasts and grow pubic and underarm hair; these "biological milestones" typically occurred only at 13 or older in the past.
Early-maturing males develop "more aggressive, law-breaking, and alcohol abusing" behaviors, which result in anger towards parents and trouble in school and with the police. Early puberty also correlates with increased sexual activity and a higher instance of teenage pregnancy, both of which can lead to depression and other psychosocial issues ...
Precocious puberty on the rise. In the mid-19th century, girls had their first periods — which typically come about two years after they begin to show signs of breasts or pubic hair — at age ...
In the early 1970s, more than 4000 people were accidentally exposed to polybrominated biphenyls (PBBs). [5] A study was conducted in the child-bearing women exposed to the toxin, with their baby girls reaching menarche by the age of 11.6 years, compared to girls who had low exposure reaching menarche by the age of 12.2–12.6 years. [5]
Research has showed that the average age of starting puberty continues to drop over time: One study published in 2020 shows that the average starting age of puberty for girls has decreased by ...
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.
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.
Some of Hollywood's biggest names are following in Stephen Colbert and Nick Kroll's footsteps and sharing throwbacks to raise money for Puerto Rico.