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Lifestyle changes may also play a role. A new study shows a spike in early puberty in girls during the onset of the pandemic, which disrupted healthy habits for many. The researchers found that ...
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.
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 ...
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 ...
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 ...
In very rare instances, menarche may occur at an unusually early age, preceding thelarche and other signs of puberty. This is termed isolated premature menarche, but other causes of vaginal bleeding must be investigated and excluded. Growth is usually normal. [16]
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]
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 ...
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