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toward earlier puberty, nor does it identify an underlying mechanism that might explain any racial differences.

Nike Vapormax Air Max 97

Nike Vapormax Air Max 97

Nike Vapormax Air Max 97

Nike Vapormax Air Max 97

longer in school, being later to leave the parent's home, later to marry, later to get financial security. And that means that we have now a huge discrepancy between when the body starts to mature physically and when overall maturity is achieved, which may mean that a boy's or girl's cognitive and social skills do not necessarily mature earlier just because the body does. So, there may be a big and growing gap here, which can cause all sorts of concern for guidance and teaching."

The result: Black boys were found to begin maturing sexually at an average age of just over 9, followed by white boys at just over 10 and Hispanic boys at between 10 and 11.

Nike Vapormax Air Max 97

Nike Vapormax Air Max 97

"By contrast, testicular development in boys is very subtle," she noted. "To the point where even the boy himself doesn't necessarily notice it at the beginning. And also the environmental issues that we have long associated with earlier puberty in girls, such as being overweight and environmental exposure to endocrine [hormone] disruptive chemicals, would actually be expected to slow puberty in boys, not hasten it. So, to see the same thing in boys is actually somewhat surprising."

Herman Giddens and her colleagues report their findings online Oct. 20 in Pediatrics, to coincide with a presentation at the American Academy of Pediatrics annual meeting in Nike Vapormax Flyknit Grey

Nike Vapormax Air Max 97

"The problem is that as a culture we are encouraging a longer and longer adolescence," noted Herman Giddens. "We're delaying maturity in our culture, by staying Nike Vapormax Price Black

Puberty onset was determined by the first signs of genital and pubic hair growth and testicular enlargement.

New Orleans. The report will also be published in the November print issue of the journal.

Dr. Frank Biro, director of adolescent medicine at Cincinnati Children's Hospital Medical Center, described the study's conclusions as "a major finding," and agreed that the growing gap between physical and social maturation should be viewed with concern.

Nike Vapormax Air Max 97

Boys Hit Puberty Sooner Now

Nike Vapormax Air Max 97

Nike Vapormax Air Max 97

The study does not pinpoint what exactly is driving the trend Nike Vapormax Triple Black Flyknit

However, the finding builds on what most experts consider definitive research from the 1990s, which confirmed that American girls are also entering puberty at a younger age today than in decades past. "And it's also more obvious, since breast development is the first sign of puberty and everybody can see it."

By Alan MozesSpecifically, investigators discovered that males are showing the first signs of sexual maturity six months to two years earlier, with blacks having a significant head start relative to whites and Hispanics.

Should the findings concern parents?

Parents need to be aware that boys might enter into sexual maturity earlier than they might have thought, and they need to discuss what that means sooner rather than later, she said. "When we talk about age 9 and age 10 we're actually talking about averages; for some boys this is actually beginning quite a bit earlier," she said. "Which means that this is an issue that needs to be addressed probably by Nike Vapormax Air Max 97 the third grade, because by the fourth grade it may be too late."

Nike Vapormax Air Max 97

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