Girls in the U.S. are getting their first menstrual period about 6 months earlier on average than they did in the 1950s and '60s. And the number... Girls are getting their first periods earlier.

Girls are getting their first periods at a younger age, according to a new study. Research conducted by Harvard University's public health school found that, in the US, the time of a person's first ...

A student stocks a school bathroom with free pads and tampons to push for menstrual equity at Justice High School in Falls Church, Va.

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SDI Productions/Getty Images / E+ Girls in the U.S. are getting their first menstrual period about 6 months earlier on average than they did in the 1950s and '60s. And more girls are beginning ...