FOMO Has an Actual Definition Now: What the Research Says About the Anxiety Behind the Checking
âFOMOâ gets used so casually now â for skipping a party, for not seeing a movie opening weekend â that itâs easy to forget it started as a specific, testable psychological claim. In 2013, a team of researchers led by Andrew Przybylski published a study in Computers in Human Behavior that did something the internet slang never bothered to: they defined fear of missing out precisely enough to measure it, built a validated scale to score it, and then tested what actually predicts it. The findings point somewhere more specific than âpeople worry about missing things,â and they explain a kind of checking behavior thatâs hard to talk yourself out of, because it was never really about the content on the screen.
A word that turned out to be measurable
Przybylski and colleagues defined FOMO as âa pervasive apprehension that others might be having rewarding experiences from which one is absent.â Thatâs a more precise claim than it sounds â itâs not just knowing youâre missing an event, itâs the specific discomfort of suspecting that somewhere, right now, other people are having a better time than you, and youâre the one not there for it.
To study it properly, they built and validated a ten-item questionnaire â statements like âI fear others have more rewarding experiences than meâ â that people rate on a five-point scale. That instrument, now called the FoMO scale, is what let researchers move the concept out of casual conversation and into something with an actual score, tested for reliability across a large sample. Itâs the reason FOMO shows up in academic research at all, rather than staying a piece of slang everyone half-agrees on the meaning of.
What actually predicts FOMO â and it isnât the feed
The most useful part of the study isnât the definition. Itâs what the researchers found causes FOMO to run high in a given person, because itâs not what most people assume.
The study is grounded in self-determination theory, a well-established framework in psychology that identifies three basic psychological needs everyone has: competence (feeling capable), autonomy (feeling in control of your own choices), and relatedness (feeling connected to other people). Przybylskiâs team found that people whose needs in these areas were going unmet day-to-day â feeling less competent, less autonomous, less connected â reported meaningfully higher FOMO. In other words, FOMO wasnât best explained by how much social media someone used, or by some fixed personality trait. It was explained by a deficit somewhere else in a personâs life that the checking was, consciously or not, trying to patch.
This matters because it flips the usual story. The common assumption is that social media causes FOMO by constantly showing you things youâre missing. The research suggests something closer to the reverse relationship being at least as important: unmet needs create the susceptibility, and social media becomes the tool people reach for to try to close the gap â checking to feel more connected, more in the loop, more like they havenât been left out of something that mattered. The feed isnât inventing the anxiety from nothing. Itâs offering a very fast, very available (and, per the same study, not especially effective) way to try to soothe an anxiety that was already there.
The behavior FOMO actually produces
The same study â and the research that followed it over the next decade â ties FOMO to a specific, recognizable set of behaviors rather than a vague sense of unease:
- Higher social media engagement overall. People scoring higher on the FoMO scale reported using social platforms more, which tracks with FOMO functioning as a felt need to stay updated rather than idle curiosity.
- Checking in situations where itâs clearly costly. The original study found FOMO associated with things like using a phone while driving and checking social media during class â moments where the checking isnât really weighed against the cost, because the anxiety is doing the deciding, not a rational assessment of âis this worth it right now.â
- Lower mood and life satisfaction. This is the part that makes FOMO worth taking seriously rather than treating as a harmless quirk: higher FOMO was correlated with lower mood and life satisfaction and lower general need satisfaction â not higher. The checking that FOMO drives doesnât appear to resolve the anxiety itâs responding to. Itâs a coping attempt that, on average, doesnât actually cope.
That last point is the one worth sitting with. If FOMO worked the way it feels like it should â check the feed, confirm you havenât missed anything important, feel better â it would be a minor, self-correcting habit. The research suggests it doesnât close that loop. The checking becomes its own behavior, decoupled from whether itâs actually making anyone feel more secure.
Why âjust check lessâ doesnât touch the anxiety
This is where FOMO is a genuinely different animal from some of the other mechanisms behind compulsive checking that weâve written about. The variable-ratio reward schedule behind âjust one more scrollâ is about an unpredictable payoff keeping you hooked once youâre already scrolling. FOMO is upstream of that â itâs often what gets you to open the app in the first place, driven by a need the app didnât create and canât really fill. Telling someone with high FOMO to âjust check lessâ is a bit like telling someone whoâs anxious about being unprepared to âjust stop studying.â It addresses the visible behavior while leaving the actual discomfort generating it completely untouched, which is a large part of why that advice so reliably fails to stick.
This also lines up with a pattern weâve described elsewhere on the habit-loop side: a blocked site doesnât remove the underlying urge, it just relocates where the urge goes looking for relief. With FOMO specifically, blocking one platform while the anxiety is still active tends to just shift the checking to whateverâs left â a group chat, a news app, a different social platform entirely â because the app was never really the target. The apprehension was.
None of this means FOMO is untreatable or that the research leaves you nowhere to stand. It means the actual lever isnât âresist the urge to checkâ in the moment the urge fires â by then, per the research on dopamine and anticipation weâve covered before, the wanting is already running. The more durable lever is structural: putting a real, external stopping point on the checking so it canât quietly consume the time the anxiety is trying to buy back, while separately working on whateverâs actually driving the unmet-needs side of the equation â which is a slower, more personal project than any browser extension can solve, but one that a forced pause at least gives you room to notice.
FAQ
Is FOMO the same thing as being addicted to social media? No, though the two overlap. FOMO is a specific emotional state â apprehension about missing rewarding experiences â thatâs one documented driver of heavy or compulsive social media use, not a synonym for it. Someone can use social media heavily for reasons that have nothing to do with FOMO (habit, entertainment, work), and someone with high FOMO might act on it through channels other than social apps entirely, like group texts or news alerts.
Does deleting social media apps fix FOMO? It removes one outlet, but the research suggests the underlying apprehension is driven by unmet psychological needs, not by the existence of the app. Without addressing whatâs generating the anxiety, it tends to resurface through whatever channel is left. Deleting an app can still be a genuinely useful piece of a broader fix â it just isnât the whole fix on its own.
Is FOMO always about social media specifically? The concept predates social apps and the original research frames it more broadly, as anxiety about missing any rewarding experience â a gathering, an opportunity, a piece of news. Social platforms are simply an unusually effective trigger for it, because they constantly surface evidence of things happening without you, updated in real time and available to check at any hour.
Can a browser extension actually help with something caused by unmet psychological needs? Not by itself, and it isnât trying to. What a tool like a hard time budget or a forced break can do is stop FOMO-driven checking from silently consuming hours it wasnât given permission to take, which creates the room to notice the pattern and work on the underlying causes on a longer timeline. Itâs a circuit breaker for the symptom, not a treatment for the cause â but a symptom left completely unchecked makes the cause much harder to work on in the meantime.
Sources: Przybylski, A. K., Murayama, K., DeHaan, C. R., & Gladwell, V. (2013). Motivational, emotional, and behavioral correlates of fear of missing out. Computers in Human Behavior, 29(4), 1841â1848.