The age you got your first period, also called menarche, is one of those milestones people remember forever. It feels loaded with meaning, and for good reason. Hormones, growth, fertility, and the ...

Add Yahoo as a preferred source to see more of our stories on Google. For girls, starting their period is inevitable. But the age when a child’s period begins, called menarche, can tell them a little ...

Getting your first period can come with a lot of conflicting feelings, from confusion and fear to excitement or relief. Knowing what to expect — as much as is possible — is one thing that can make ...