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On average, females begin puberty at age 10½ and complete puberty at ages 15-17; males begin at ages 11½-12 and complete puberty at ages 16-17. [ 1 ] [ 2 ] [ 3 ] The major landmark of puberty for females is menarche , the onset of menstruation, which occurs on average around age 12½. [ 2 ]
The puberty ritual for the young Roman male involved shaving his beard and taking off his bulla, an amulet worn to mark and protect underage youth, which he then dedicated to his household gods, the Lares. [2] He assumed the toga virilis ("toga of manhood"), was enrolled as a citizen on the census, and soon began his military service. [3]
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]
Parents need to talk with their sons about puberty changes before voices crack and new body hair appears. Doing so will help them have healthier, happier lives. When male puberty hits, parents ...
Puberty is considered delayed when the child has not begun puberty when two standard deviations or about 95% of children from similar backgrounds have. [7] [8] [9]In North American girls, puberty is considered delayed when breast development has not begun by age 13, when they have not started menstruating by age 15, [2] and when there is no increased growth rate. [8]
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Puberty is the process of physical changes through which a child's body matures into an adult body ... boys begin around ages 11–12 and end around 16–17. [8 ...
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.