For decades, girls have been starting menstruation at increasingly younger ages. A new Harvard study has confirmed this trend, showing that the onset of first periods continues to occur progressively ...

For girls, starting their period is inevitable. But the age when a child’s period begins, called menarche, can tell them a little about their health later in life. Menarche that begins “anytime ...

Girls in the US are starting their periods earlier, which could signal health impacts later. A new study shows that nutrition ...

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 ...