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 menstruation before the age of 9 ...

By Alisha Haridasani Gupta A new study, published Wednesday, found that girls are starting their menstrual cycles earlier now than in previous decades. The trend is more pronounced for girls from ...

The study found that the percentage of girls getting their period before the age of ... This trend toward earlier periods was observed across all demographics but was more pronounced among girls ...

SALT LAKE CITY — Girls have been getting their periods earlier and earlier for more than ... health challenges as the girls get older. A new study led by Harvard T.H. Chan School of Public ...

Girls in the U.S. are getting their first period earlier on average than they did in the 1950s and '60s. That's according to a large new study published ... getting their periods early or very ...

SDI Productions/Getty Images / E+ Girls in the U.S. are getting their first ... before age 9 more than doubled. The study found this trend toward earlier periods across all demographics, but ...

Girls are getting their first periods earlier ... began menstruation before age 9 more than doubled. The study found this trend toward earlier periods across all demographics, but it was much ...