While this can increase FOMO (fear of missing out), which affects both boys and girls, scrolling through hundreds of such photos, girls may be more pained than boys by what Georgetown University linguistics professor Deborah Tannen calls “FOBLO”—fear of being left out.29 When a girl sees images of her friends doing something she was invited to do but couldn’t attend (missed out), it produces a different psychological effect than when she is intentionally not invited (left out).

