According to a recent article that I read, “there is a significant correlation between fetal testosterone levels and vocabulary, suggesting that fetal testosterone might be involved in shaping the neural mechanisms underlying communicative development.”
Put concisely: the lower your testosterone, the greater your vocabulary.
“One study found that girls had a significantly larger vocabulary than boys at the ages of 18 and 24 months after birth. Their discovery replicated previous findings of a female advantage in language ability, but revealed this sex difference at the earliest point of development.” So that’s why girls chatter more!
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