If you’re the mom of a tween daughter, you probably already know that girls are getting their periods at a much younger age ...

Summer camp is an exciting time, but there's also a chance your child's first period will arrive while they are away. Here's ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study out of Brazil links early or late menstruation onset to health struggles later in life. How the timing of your first ...

Age of first period offers clues to heart, metabolic, and reproductive risks in the future.