Psychology Today | 20.04.2026 18:58Fear of missing out (FOMO) is generally described as the anxiety or fear people experience when they think they’re missing out on something (Rifkin, Chan & Kahn, 2025). Most often, FOMO happens around missing social events or interactions with people that could affect their relationships or perceived group membership. For example, missing a party or event at a friend’s house can cause a person to experience FOMO.