Girls in the U.S. are getting their first period earlier than in decades past. Researchers say there are multiple factors causing early puberty, including obesity and environmental pollutants. Girls ...

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 ...

Do you remember when you got your first period? If not, think harder because your doctor may soon be asking. In the last year, research has linked the age of first menstruation to health risks ranging ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Girls in the United States are getting their periods earlier, and it's ...

One in four American women feel they were totally unprepared for their first period – according to new research. For the most part, over half (55 percent) were generally unprepared for the first time ...

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