SACRAMENTO, Calif. — American girls are entering puberty at earlier ages, putting them at far greater risk for breast cancer later in life and for all sorts of social and emotional problems well ...

More girls are hitting puberty at eight or earlier. Researchers are exploring the causes, the consequences and what should be done. When Lola was eight years old, she went through a massive growth ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Kids with ovaries go through distinct physical changes during puberty. Discover the stages of puberty for girls and how parents ...

A new study adds to the evidence that girls in America are reaching puberty earlier with potentially troubling implications for their long-term health. More girls are getting their first periods ...

In recent decades, data from sports researchers revealed an encouraging trend: young girls were participating in sports in greater numbers. But the research also uncovered a big missed opportunity.

NEW YORK (Reuters Health) - Girls are beginning to grow breasts at an earlier age, and starting their periods sooner too, new research from Denmark shows. The findings back up recent studies that ...

WASHINGTON—Girls exposed to certain endocrine-disrupting chemicals (EDCs) may be more likely to start puberty early, according to new research published in Endocrinology, the flagship basic science ...

Women’s sport has never been stronger or more visible. But even as the performance gap narrows, it remains. The reason lies ...