The Fear of Missing Out (FOMO) is a psychological phenomenon amplified by social media and constant connectivity. People experience anxiety or dissatisfaction when they believe others are having rewarding experiences they are not part of. FOMO can lead to compulsive checking of social media, overcommitment, and reduced enjoyment of present moments. Studies show it negatively impacts mental health, increasing stress, jealousy, and depression. However, awareness of FOMO allows individuals to set boundaries, prioritize personal well-being, and cultivate contentment. Techniques like mindfulness, digital detoxes, and intentional planning can reduce its effects. Understanding FOMO is essential for navigating the modern digital landscape, where curated online lives often distort reality, influencing behavior, emotions, and social interactions in profound ways.