Editor’s note: The podcast Chasing Life With Dr. Sanjay Gupta explores the medical science behind some of life’s mysteries big and small. You can listen to episodes here. (CNN) — Puberty: It’s one of ...

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 — ...

Young girls' bodies are maturing faster than their brains can keep up. A new study from Cincinnati Children's Hospital finds 42-percent of African American girls have hit puberty by age 8. The result ...

The signs of puberty in girls are immediately noticeable. They shoot up in height. They develop breasts. In boys, the first changes are to the genitals. Their testicles grow, then their penises. Once ...