A 10-year Danish study finds puberty is starting earlier in kids, linking the shift to pregnancy, weight, stress, and genetics.

A new Danish study compiles 10 years of research from one of the world's largest and most detailed puberty cohorts and points to three main conclusions: puberty is occurring earlier; genes, pregnancy ...

Few topics provoke as much concern as the perception that puberty is beginning earlier than ever. While synthetic ...

Why do some teens wind up with mental health and substance abuse problems? It's something researchers have worked to explain over the years, pointing to everything from parenting styles to genetic ...