Have You Ever Seen Someone Shouting on the Street and Wondered What Was Going On?
In large cities, it is not uncommon to hear someone shouting loudly into the air, arguing with unseen people, pacing aggressively, or behaving in ways that appear unusual or frightening. Sometimes the person seems extremely angry or emotionally overwhelmed. At other times, they suddenly become quiet when pedestrians approach or when attention shifts around them.
For many people observing these situations from a distance, one question naturally arises:
“What is actually happening with this person?”
The answer is often far more complicated than most people realize.
There Is No Single Diagnosis
Public behaviors such as shouting, talking to oneself, emotional outbursts, or agitation can result from many different conditions and life circumstances. Even experienced mental health professionals generally cannot diagnose someone simply by observing them briefly on the street.
Two people may appear very similar outwardly while having completely different underlying causes for their behavior.
Some Possible Explanations
Psychotic Disorders
One possible explanation is a psychotic disorder such as schizophrenia or schizoaffective disorder. Individuals experiencing psychosis may hear voices, experience paranoia, or believe they are responding to threats that feel completely real to them.
Someone who appears to be arguing with unseen people may, from their perspective, genuinely believe they are being followed, watched, or spoken to.
Symptoms can include:
• Hearing voices
• Disorganized thinking
• Delusional beliefs
• Emotional withdrawal
• Difficulty distinguishing reality from hallucinations
Importantly, many individuals with psychotic disorders can improve significantly with treatment, medication, stability, and support.
Bipolar Disorder and Mania
Another possibility is bipolar disorder during a manic episode. Severe mania can involve:
• Extreme energy
• Little need for sleep
• Rapid speech
• Irritability
• Grandiosity
• Impulsive behavior
In some cases, mania can also include psychotic symptoms, causing individuals to become highly agitated or emotionally explosive in public settings.
Substance Use and Intoxication
Substances are also a major factor in many urban psychiatric emergencies.
Drugs such as methamphetamine, cocaine, PCP, synthetic cannabinoids, and alcohol withdrawal can produce:
• Severe agitation
• Paranoia
• Hallucinations
• Emotional instability
• Aggressive or bizarre behavior
These symptoms may fluctuate rapidly, which can explain why someone appears highly distressed one moment and calm the next.
Trauma, Stress, and Emotional Dysregulation
Not every person shouting in public is psychotic.
Some individuals are experiencing overwhelming stress, trauma, grief, severe anxiety, or emotional dysregulation. Homelessness, chronic fear, social isolation, sleep deprivation, and untreated trauma can all push people toward visible emotional breakdowns in public spaces.
For some individuals, the street itself becomes the place where emotional pain spills outward.
Medical and Neurological Conditions
Certain medical conditions can also affect thinking and behavior.
Brain injuries, dementia, seizures, infections, metabolic disorders, or delirium may sometimes lead to confusion, disorganized behavior, or emotional outbursts that resemble psychiatric illness.
This is one reason mental health professionals must consider both psychiatric and medical explanations during evaluations.
Why Do Some People Suddenly Become Quiet?
One detail many observers notice is that some individuals become quiet when pedestrians approach them.
There are several possible reasons:
• Temporary self-control
• Fear of confrontation
• Awareness of being observed
• Fear of police involvement
• Fluctuating psychiatric symptoms
• Substance-related changes in attention or perception
Human behavior is highly dynamic, especially under stress, intoxication, or psychiatric instability.
The Reality of Diagnosis
Psychiatric diagnosis is far more complex than matching visible behavior to a label.
Clinicians must consider:
• Personal history
• Substance use
• Sleep patterns
• Medical conditions
• Duration of symptoms
• Trauma history
• Mood changes
• Hallucinations or delusions
• Ability to function in daily life
Without a proper evaluation, it is often impossible to know what someone is truly experiencing internally.
The Bigger Picture
In many cities, visible public psychiatric distress is connected not only to mental illness, but also to:
• Homelessness
• Poverty
• Addiction
• Limited access to treatment
• Fragmented healthcare systems
• Social isolation
• Lack of long-term support
Often, what people see on the street is not one simple disorder, but the final visible result of many overlapping struggles.
A Reminder About Compassion
It is easy to judge people based on brief public encounters. However, behind most visible emotional disturbances is usually a person struggling with pain, fear, illness, trauma, instability, or isolation.
Many are someone’s child, parent, sibling, friend, or neighbor.
While public safety matters, compassion matters too.
The reality is that we often do not know what battle another person is fighting internally. Observing these situations with empathy rather than immediate judgment can help create a more humane understanding of mental health in modern urban life.
Simon R. Downes 