London had a tough couple of days; she had been sent to the principal’s office for lashing out at a girl who had been mean to her by sending a text impersonating a boy that girl liked. I wanted to put a face to the alarming headlines about teens and social media — in particular, girls. Rachel Woolf for The New York Times AnnaThe long-term effects of social media on the teenage brain have not yet been defined, much less proven — which isn’t to say it’s all bad. Dee Dwyer for The New York Times LondonFor adults, it’s become common to name the things that make women more likely to face burnout and stress. But it is a snapshot of being 13 in the age of social media.

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Persons: Anna, wouldn’t, Elaine Cromie, The New York Times Addi Anna, Addi, who’d, Rachel Woolf, The New York Times Anna, isn’t, ”, Mitch Prinstein, Dee Dwyer, it’s Organizations: The New York Times, American Psychological Association, The New York Times London Locations: Snapchat, London, Addi , Michigan, Colorado, London , Maryland