Understanding Mass Psychosis: Meaning, Historical Uses, And Modern Misconceptions

Medically reviewed by Julie Dodson, MA, LCSW and Majesty Purvis, LCMHC
Updated November 16, 2024by BetterHelp Editorial Team

When you think of the phrase "mass psychosis," images of hysteria and unexplainable outbreaks might come to mind. Pop culture often paints dramatic pictures, leaving us with muddled ideas about what these events truly involve. However, behind the sensationalism lies a complex phenomenon that may deserve a more informed and compassionate look.

History has many incidents labeled as "mass hysteria," yet the modern mental health field uses different terms. This article will explore why the language has shifted, what these events might entail, and how a nuanced understanding can counter harmful misconceptions. If you’ve been impacted by this phenomenon, working through the effects in therapy may be helpful.

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Mass psychosis meaning and terminology

In clinical settings, the favored term for mass psychosis is usually "mass psychogenic illness" (MPI). Mass anxiety hysteria and mass motor hysteria can be seen as two types of MPI. Mass psychogenic illness may be seen as a strange domino effect: Suddenly, people around you develop similar symptoms, and doctors don't seem to have a readily apparent medical explanation. In general, this phenomenon isn't about faking illness; the symptoms these individuals experience are usually very real to them. Instead, the root seems to lie in the interplay between the mind and body, especially under stress.

A few people in a group may experience unusual symptoms, prompting heightened anxiety and awareness in others. Within tight-knit communities or tense situations, a sense of unease can spread. This environment might lead to more individuals developing some of the same symptoms, even without a shared physical illness being present.

Mass hysteria and mass sociogenic illness

In the past, terms like "mass hysteria" or "mass sociogenic illness" were frequently used for these occurrences. The intention wasn't necessarily malicious, but the words themselves tend to carry a certain stigma that perpetuates misunderstandings. 

Mass psychogenic illness

Modern mental health experts typically prefer "mass psychogenic illness" — this term generally acknowledges the psychological component without diminishing the realness of the symptoms experienced. Language matters and can subtly shape our perceptions and potential responses.

While some degree of psychosis may affect as much as 7% of the general population, mass psychosis tends to be much rarer. These situations can be unsettling, but understanding the “why” behind them might help us minimize their impact and offer better support. By understanding the root causes, we can potentially lessen the disruption they cause for the people caught in the middle.

Snapshots of the past: MPI through history

History may offer glimpses of what modern experts might interpret as mass psychogenic illness. Think of the Middle Ages "dancing mania," where groups of people would compulsively dance for days on end, sometimes reaching utter exhaustion. Another example may be the Salem witch trials, a stark example of how fear and social pressure can fuel unusual beliefs and behaviors within a community.

During these events, medical understanding was limited, and societal pressures were vastly different. In those contexts, mass psychological reactions to intense stressors were possibly more likely to take hold. However, we can't definitively diagnose events across distant centuries. What matters may be appreciating the broader social and historical landscapes in which these occurrences emerged.

Even today, we sometimes hear reports of symptom clusters within schools, workplaces, or communities. Dizziness, unexplained fainting, or strange movements might appear, leaving everyone confused, especially when a clear medical cause remains elusive. There’s often a tendency to write these events off as attention-seeking, but that may be inaccurate and unfair.

Stress and anxiety may be major players, but the distress people feel is usually genuine. Just because we can't pinpoint a specific underlying disease doesn't mean the symptoms themselves aren't real or disruptive to people's lives.

A middle aged man stands near a window in his home and leans his arm agains the window sill while gazing out with a worried expression.
Getty/Oliver Rossi

Mass psychogenic illness: Beyond misconceptions

The speed at which these outbreaks happen can be puzzling. The rapid spread of MPI can be a bewildering aspect that is frequently exaggerated in media portrayals. Beneath the drama may lie a different story — one of how our fears, anxieties, and shared spaces can amplify one another, leading to very real physical symptoms.

Fear itself can be highly contagious. When we see someone experiencing something alarming, especially if the fear is unexplained, our own anxiety levels can escalate. This state of hyper awareness may make us more susceptible to noticing or even developing similar symptoms ourselves, hence fueling the spread.

However, not everyone may be equally vulnerable to mass psychogenic illness. We're all wired differently. For some, an existing mental health condition or severe strain could make them more susceptible to this kind of ripple effect. Others might be more sensitive by nature, potentially leading them to pick up on the emotions of the group more intensely.

When faced with clusters of unexplained symptoms, healthcare professionals can provide clarity. Their primary task is usually to thoroughly investigate potential medical causes. Ruling out underlying illnesses is often the first step, both for the well-being of those affected and to reassure the wider community.

Once medical possibilities are sufficiently explored, a diagnosis of mass psychogenic illness might be considered. In these cases, mental health professionals typically step in to provide support and help the affected individuals understand what they're experiencing. Open communication and strategies to reduce stigma can mitigate the impact of mass psychogenic illness on individuals and communities. Strategies to manage anxiety and stress can also become integral parts of the recovery process.

Mass psychosis: Self-care in the face of uncertainty

When events like mass psychogenic illness happen, it's okay to feel a little shaken. These feelings can be common reactions to unsettling or confusing situations. Still, there are steps you can take to manage the anxiety and uncertainty, taking care of your mind just like you would your body.

Here are a few tools for your mental health toolbox:

Focusing on the basics

Sometimes, when our minds are racing, taking care of simple needs can be helpful. Getting enough sleep, eating nourishing foods, or even just taking a walk outside can make a difference. Taking care of your body can be one way to support your mind.

Breathing as an anchor

Have you ever noticed how your body feels when you're anxious? Maybe your shoulders are tense, or your heart is pounding. Taking a few slow, deep breaths can signal to your body that it's time to calm down. 

Limiting news overload

While staying informed can be helpful, doom-scrolling or constantly rehashing upsetting information can fuel anxiety. Choosing reliable news sources and giving yourself breaks from the news cycle can reduce anxiety.

Connecting with others

You don't have to go through this experience alone. Talking to a trusted friend or family member about how you're feeling can offer support.

Getting professional help for your mental health

If the anxiety becomes overwhelming or it's seriously interfering with your daily life, you may need to reach out to a mental health professional. They can offer coping strategies tailored specifically to your needs.

Being kind to yourself (and others)

It often takes time to process confusing events, and healing isn't a race. Allowing yourself to experience and process your emotions and treating yourself with compassion can help you come to terms with what's happened.

Mass psychogenic illness will likely continue to occur, but understanding it as a genuine experience rather than dismissing it as hysteria can reduce stigma. It's okay to feel shaken after witnessing these kinds of events. By recognizing how fear, stress, and group dynamics play a role, we may develop better prevention strategies. That knowledge may create communities that can overcome these challenges with empathy and understanding.

Lessons from the past: Mass hysteria revisited

While the language of "mass hysteria" might be antiquated, there may still be insights to glean from a historical perspective. Looking at past occurrences, like outbreaks of epidemic hysteria, can shed light on how social conditions, limited understanding of illness, and fear can fuel unusual collective experiences.

This isn't to say that all historical events currently interpreted as potential MPIs were solely psychological. However, by appreciating the broader context, we can better understand our own potential vulnerabilities in today's world. Even with modern scientific advancements, we are not necessarily immune to the potential influence of group dynamics and the potent interplay between fear and physical experience.

Dispelling myths about mass psychogenic illness can be an act of both education and compassion. When we understand that these events are usually rooted in complex mind-body interactions, we can move away from judgment and toward a more supportive approach. Reducing sensationalism and promoting fact-based understanding may empower both healthcare providers and the general public.

The interaction between our minds and bodies can be complex. Anxiety, potent emotions, and deep-seated stress can manifest in tangible, physical ways. In conversion disorder, for example, neurological symptoms may occur without a readily identifiable medical cause — the root appears to be psychological. Our brains often wield power in shaping our perceptions of illness and pain. This reality may demand a nuanced approach.

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Navigating mental health and mass psychogenic illness through online therapy

Navigating the aftermath of mass psychogenic illness can be a deeply personal experience. Online therapy may offer the potential to connect with specialists, even from a distance. Online therapy might make it easier to find care that is truly personalized to your needs. Plus, with flexible appointment times and potentially lower costs, online therapy can lighten the logistical and financial strain of seeking help.

Developing research suggests online therapy can be just as effective as in-person care in the management of psychosis, offering a way to address the worries and anxieties that can surface after mass psychogenic illness. Please note that individuals experiencing acute psychotic symptoms may require in-person support.

Takeaway

The more we understand how components like stress and psychological factors fuel mass psychogenic illness events, the better equipped we may be to help. Knowledge can remove the stigma sometimes associated with MPI and give us tools to be more compassionate. Resources like online therapy can make a difference in individual lives, but the ripple effect may be even bigger. Good mental health can contribute to stronger, healthier communities.
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