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Study finds menstrual periods are arriving earlier, especially among racial minority and lower-income individuals

Study finds menstrual periods are arriving earlier, especially among racial minority and lower-income individuals
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Periods arriving earlier for younger generations | News | Harvard T H Chan School of Public Health

Menstrual periods are arriving earlier for younger generations, especially among racial minority and lower-income individuals

The average age at menarche the first menstrual period has been decreasing among younger generations in the U.S., especially those belonging to racial minorities and lower socioeconomic statuses, according to a new study. It also found that the average time it takes for the menstrual cycle to become regular is increasing.

New tougher U S air pollution standards shaped by Harvard Chan School research

New tougher U S air pollution standards shaped by Harvard Chan School research
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