A study of 132,000 children finds that high BMI in mid- to late childhood is the strongest predictor of early pubertal onset.

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 ...

Ten-year-olds developing adult bodies, eight-year-olds needing training bras, and seven-year-olds starting their periods – these scenarios that would have been shocking medical anomalies just a ...

Get inspired by a weekly roundup on living well, made simple. Sign up for CNN’s Life, But Better newsletter for information and tools designed to improve your well-being. As England’s National Health ...