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Menstrual Cycles Starting Earlier and Taking Longer to Regulate

Menstrual Cycles Starting Earlier and Taking Longer to Regulate
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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 low-income individuals, according to a new study.

United statesMichelle williamsMichellea williamsMaya brownsteinTyler fischer colbrieZifan wangAnne mariez jukicNataliia nesterenkoRuss hauserAllenj wilcoxGowtham asokanDonnad bairdJukka pekka onnelaShruthi mahalingaiahApple women health studyOther harvard chan school