"And that means, of course, that in terms of the main finding that teenage boys engage in this more than girls, I am absolutely not shocked or surprised," Hilfer added. "I think that testosterone is a big factor among boys. And I think that it's more socially acceptable among their peer group in general to talk about it and engage in it. It is becoming more acceptable among girls. But historically, and still today, it's something that boys do more and earlier."
More information
There's more on this topic at the American Academy of Pediatrics.
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