It’s common these days for girls to enter puberty before discovering “Are You There God? It’s Me, Margaret”.
“Over the second half of the 20th century, the average age for girls to begin breast development has dropped by a year or more in the industrialized world.
And the age of first menstruation, generally around 12, has advanced by a matter of months. Hispanic and black girls may be experiencing an age shift much more pronounced.” Read more…
SOURCE: ScienceNews
