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Although there is a wide range of normal ages, females typically begin the process of puberty around age 10½; males at ages 11½—12. Puberty generally ends between 15—17 for females and 16–17 for males. [1] [2] [3] Females attain reproductive maturity about four years after the first physical changes of puberty appear. [13]
Scout Life (formerly Boys' Life) is the monthly magazine of the Boy Scouts of America (BSA). Its target readers are children between the ages of 6 and 18. The magazine‘s headquarters are in Irving, Texas. [3] [4] [5] Scout Life is published in two demographic editions.
As part of a science program on Norwegian public television , a series on puberty intended for 8–12-year-olds includes explicit information and images of reproduction, anatomy, and the changes that are normal with the approach of puberty. Rather than diagrams or photos, the videos were shot in a locker room with live nude people of all ages.
Another study, which was published in 2024, found that the average age that girls had their first periods decreased from 12.5 years old in 1950 to 1969 to 11.9 years old in 2000 to 2005.
The average age of puberty’s onset — ranging from ages 8 to 13 for girls in the U.S. — has been dropping by about three months every decade over the last 40 years, according to a 2020 ...
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Among sexually-active 15-to-19-year-olds, from 2002 to 2010 more than 80% of females and more than 90% of males reported using at least one method of birth control during their last intercourse. [ 17 ] [ 24 ] In 1995, only 71% of girls and 82% of boys reported using contraception the last time that they had sex. [ 17 ]
Puberty starting earlier in girls and boys Research from 2020 shows that the average age of starting puberty for girls has decreased by about three months each decade from 1977 to 2013.