Add Yahoo as a preferred source to see more of our stories on Google. Puberty lessons, as part of sex education, typically begin in the fifth grade. Many experts say that's too late. (Collage: Getty ...

Jennifer Benton’s daughter was just 5 years old when her kindergarten teacher pointed out something unusual: the young girl was developing breasts. It was 2019 and the little girl loved playing with ...

A sweeping review of 12 international cohort studies shows that heavier boys, especially those carrying excess weight after age six, reach key puberty milestones sooner, reshaping how parents and ...

Today's teens and tweens are experiencing puberty earlier than ever before and in different ways. Cara Natterson and Vanessa ...

The age when girls hit puberty has been falling at an alarming rate for decades, and scientists have struggled to explain why. New research suggests a compound found in a wide variety of products — ...

When author Naama Bloom watched her hilarious “Camp Gyno” video, about a tween who is the first girl at her summer camp to get a period, go viral in 2013, she knew she was on to something. She ...

As if being a pre-teen girl isn’t hard enough. A new study says some common soaps, shampoos and other personal care products may be putting adolescent girls at a higher risk of certain cancers and ...

Jennifer Benton’s daughter was just 5 years old when her kindergarten teacher pointed out something unusual: the young girl was developing breasts. “It was really alarming,” said Benton, 39. “She may ...