First, starting a period at 17 is a complete outlier, considered old/late by all measures, and anecdotal to your own story. Second, different races do reach puberty at different ages. Like I already wrote, there are different gestation times between races. Africans have the shortest and Asians have the longest. Shorter gestation equals sooner adolescence.Il tell you why I dont think it has to do with race because this person O knew who only got her period at 17 that was kind of normal back then but that same race today get their period at a very young age, keep in mind our modern diet and cosmetics and products we use today are full of chemicals and hormones that effect the womans cycle plus the kind of lifestyles we living today compared to 50 years ago,so yes maybe you will notice that some races might be getting their periods sooner but go look at their diet and lifestyle they will most probably be eating and living the non healthy way they not eating organic food and they not out in nature either am I right?
And I will tell why I don't think immigrants having an earlier menarche has to do with diet... because these illegal immigrants are coming here fat to begin with...
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