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Due to natural variation, individuals pass through the Tanner stages at different rates, depending in particular on the timing of puberty.Among researchers who study puberty, the Tanner scale is commonly considered the "gold standard" for assessing pubertal status when it is conducted by a trained medical examiner. [5]
[9] [10] [11] Puberty that starts earlier than usual is known as precocious puberty, and puberty which starts later than usual is known as delayed puberty. 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 ...
Precocious puberty is a condition where children undergo puberty before seven or eight years. [5] Precocious puberty differs from premature thelarche in that the individual experiences additional aspects of puberty, including menarche , adrenarche , pubarche , vaginal discharge , and bone growth, while the sole presence of early thelarche ...
As puberty hits, boys are likely not thinking about children or how their current habits will affect their future fertility. Smoking, drug use, poor diet, obesity — these all can contribute to ...
18:41, 12 March 2020: 1,122 × 1,022 (401 KB) Aréat: Uploaded a work by Stolz, Herbert Rowell from Somatic development of adolescent boys; a study of the growth of boys during the second decade of life, by Herbert Rowell Stolz and Lois Meek Stolz. Licence non renouvelée dans les vingt huit ans with UploadWizard
The average age of onset of puberty is 10–11 for girls and 11–12 for boys. [10] [11] Every person's individual timetable for puberty is influenced primarily by heredity, although environmental factors, such as diet and exercise, also exert some influences. [12] [13] These factors can also contribute to precocious and delayed puberty. [14] [13]
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 ...
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.