 And there's research showing that girls are most damaged by social media between the ages of 11 to 13. Boys, maybe a little bit later, 14 to 15. And so the idea that American children, children all over the world, during the most sensitive years in which their brain, their frontal cortex is trying to wire up to, you know, how do we live in this culture? Who am I? All those questions that they're working out in early adolescence.