--- title: Facebook A/B testing — what it is and how to set it up url: https://blog.krasovskiy.team/en/facebook-a-b-testing-what-it-is-and-how-to-set-it-up/ date: 2025-09-16 lang: en source: blog.krasovskiy.team --- # Facebook A/B testing — what it is and how to set it up # FOMO (Fear of Missing Out): The Complete Guide to Fear of Missing Out In today's world, oversaturated with information and opportunities, more and more people are facing a phenomenon known as **FOMO** or **Fear of Missing Out**. This psychological state, characterized by the constant fear of missing something important, is becoming a real epidemic of the digital age. **What is FOMO** and why is this phenomenon so widespread right now? This question worries psychologists, sociologists and ordinary people who feel the impact of this syndrome on themselves every day. ![Woman looking at tunnel, symbolizing uncertainty and fear of missing opportunities](https://img.b2bpic.net/premium-photo/rear-view-woman-lying-footpath-while-looking-tunnel_1048944-26866814.jpg) **The concept of FOMO** is that a person constantly worries that others are having a more interesting or useful experience while they are doing something else. This feeling is reinforced by [social networks](https://blog.krasovskiy.team/en/the-influence-of-links-from-social-networks-on-ranking/), where we only see the best moments of other people's lives. **FOMO Ukraine** is no exception - according to research, more than 60% of Ukrainian social network users regularly experience symptoms of this syndrome. ## What is FOMO? Definition and concept **Definition of FOMO** can be defined as the pervasive worry that others may have useful experiences that you do not. This is social anxiety, which is characterized by the desire to constantly stay in touch with what others are doing. **Fear of Missing Out** is not just a fear of missing an event, it is a deep fear of being left out of a social group or losing opportunities for self-realization. Psychologists define **the concept of FOMO** as a form of social anxiety based on the fundamental human need for belonging and connection with others. This phenomenon is closely related to the theory of self-determination, which states that people have three basic psychological needs: autonomy, competence, and connection with others. ## The history and origin of the concept of FOMO **The history of FOMO** dates back to long before social media. Although the term itself appeared relatively recently, **fear of missing out** something important has accompanied humanity throughout its history. In primitive societies, it was a matter of survival – missing an animal migration or a change in the weather could cost one's life. **The origin of the concept of FOMO** in the modern sense is associated with marketer Dan Herman, who first used this term in 2000. However, the term became widespread thanks to Patrick McGinnis, who in 2004 published an article in the student newspaper of Harvard Business School, which described this phenomenon in detail. ### The Evolution of FOMO in the Digital Age With the development of technology, **FOMO** has transformed from a simple social phenomenon into a complex psychological phenomenon. Smartphones and social networks have created unprecedented conditions for constant comparison of oneself with others. Instagram, Facebook, TikTok - these platforms became catalysts for the development of the **Fear of Missing Out** syndrome. In the Ukrainian context, **FOMO Ukraine** has its own characteristics. Economic instability, martial law and rapid social changes create additional factors for the development of this syndrome. Ukrainians especially acutely feel the **fear of missing out** opportunities for emigration, career growth or study abroad. ## Psychological mechanisms and causes of FOMO Understanding the [psychological mechanisms](https://blog.krasovskiy.team/en/using-ai-in-seo-how-to-save-time-and-money/) underlying **what is FOMO** helps to better understand the nature of this phenomenon. At its core, the **FOMO concept** is based on several fundamental psychological principles. First, it is an evolutionary need to be part of a group - in ancient times, exclusion from the tribe meant certain death. Modern research shows that the **definition of FOMO** involves the activation of the same areas of the brain responsible for pain and pleasure. When we see others having a positive experience, our brain interprets it as a lost reward, causing stress and anxiety. ### Neurobiological basis of fear of missing out On a neurobiological level, **fear of missing out** activates the amygdala, the part of the brain responsible for processing emotions and forming reactions to threats. When we see friends' posts about their successes or fun, the amygdala can interpret this as a social threat to our status. Studies show that people with high levels of **FOMO** have increased activity in the prefrontal cortex when making decisions. This leads to a constant analysis of alternatives and the inability to enjoy the present moment. **The origin of the concept of FOMO** in neuroscience is associated with these mechanisms of social information processing. > FOMO is not just the fear of missing out on an event or opportunity. It is a deep feeling that something more important, more interesting and more significant is happening somewhere out there than what you are doing now. Understanding this phenomenon is the first step to liberation from its power. Remember: every moment of your life is unique, and trying to live all your lives at the same time only leads to the fact that you are not fully living your own.