Why has the age of puberty decreased

This is called constitutional delay and usually doesn't need any treatment.If and when these processes do start, delayed puberty might.According to the findings, boys are now beginning puberty around, or a little before age 10.Boys can start puberty at a wide range of ages, with 95% starting between the ages of 9 and 14, so we consider puberty delayed when it has not started by age 14.It's not just girls, a study from the american academy of pediatrics found that boys were starting puberty earlier than previously recorded.Today, that number has decreased to 12 or 13 years..

1 it's also affecting children at ages that are historically unprecedented.While a few centuries ago, a child might have hit puberty at the age of 15, the current average age is 11 for girls and 12 for boys, though it.Previously, 11 years of age was the given number where.No breast development by age 14.Most experts agree that the decline in the age of puberty is attributable to decreased rates of disease, increased nutrition, and human females' ability to adapt sexual maturation to environmental cues (e.g., health, food, shelter).this is why it is difficult to speak of a normal age and time for puberty.The age at which a child enters puberty (stage one) varies.