I wonder how much differing teenage pregnancy rates reflect different biological Age at First Reproduction https://www.ppin.org/education/documents/adolecent_preg_fact_sheet_06.pdf …
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Replying to @sarahdoingthing
@sarahdoingthing oh yeah. i think it has everything to do w/AFR. inside the hajnal line=being able to delay gratification. very connected!1 reply 0 retweets 1 like
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