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Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction.It is initiated by hormonal signals from the brain to the gonads: the ovaries in a female, the testicles in a male.
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 body; from girl to woman, from boy to man. [clarification needed]
Continuous changes, like growth in stature, involve fairly gradual and predictable progress toward adult characteristics. When developmental change is discontinuous, however, researchers may identify not only milestones of development, but related age periods often called stages.
As far as physical activity goes, American kids are mostly C and D students. And “everything is graded on a curve,” says Jordan Carlson, a professor of pediatrics at Children's Mercy Hospital ...
Sophia Luo, a high school junior who recently watched the coming-of-age film “Turning Red,” said she immediately felt pangs of familiarity.
Children’s physical activity levels fell below national guidelines in the wake of the Covid-19 pandemic, new research suggests. A study found that by the end of 2021, little more than a third ...
These changes are largely influenced by hormonal activity. Hormones play an organizational role, priming the body to behave in a certain way once puberty begins, [16] and an active role, referring to changes in hormones during adolescence that trigger behavioral and physical changes. [17]
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