U.S. boys reaching puberty earlier than ever: Study


Boys are hitting puberty as early as 9 years old.

Research has shown that girls are reaching puberty earlier than they used to, and now the same appears to be true of boys. Boys are entering puberty somewhere between six months and two years earlier than the textbooks think, according to a new study. In the earliest cases, African-American boys reach puberty just after age 9, with whites and Hispanics about a year later.


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Boys reach sexual maturity younger and younger

male maturity age graph 23456

Male maturity age has shifted again.

Boys are maturing physically earlier than ever before. The age of sexual maturity has been decreasing by about 2.5 months each decade at least since the middle of the 18th century. Joshua Goldstein, director of the Max Planck Institute for Demographic Research in Rostock (MPIDR), has used mortality data to demonstrate this trend, which until now was difficult to decipher. What had already been established for girls now seems to also be true for boys: the time period during which young people are sexually mature but socially not yet considered adults is expanding…

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