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A 2006 study in Denmark found that puberty, as evidenced by breast development, started at an average age of 9 years and 10 months, a year earlier than when a similar study was done in 1991. Scientists believe the phenomenon could be linked to obesity or exposure to chemicals in the food chain, and is putting females at greater long-term risk ...
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] In HIV treatment, the Tanner scale is used to determine which regimen to follow for pediatric or adolescent patients on antiretroviral therapy (adult, adolescent ...
In comparison to girls, it can be tricky to define when exactly sexual development in boys begins. For boys, puberty typically takes around 5 years to finish, as opposed to just 3 + 1 ⁄ 2 years for girls (menarche). By this point in time, they have already experienced their growth spurt and there are evident changes in their body shape ...
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.
Experts say that lessons on puberty in school aren't comprehensive enough and often happen too late — after development has already started for many. Why puberty education in the U.S. starts too ...
In the Philippines, a popular coming of age celebration for 18-year-old women is the debut. It is normally a formal affair, with a strict dress code such as a coat and tie for the upper-middle and upper classes, and usually has a theme or color scheme that is related to the dress code.
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.
A series of sex education videos from Norway, 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 are shot in a locker room with live nude people of all ages.