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Yes—there is a name for that sudden thought. The familiar phrase is the “call of the void”; researchers use high place phenomenon (HPP) for an abrupt thought or urge to jump when you are on a ledge, bridge or other height.
Having the thought does not, by itself, prove that you want to die, have a mental illness or are in immediate danger. It is an experience worth taking seriously if it is persistent, frightening, linked to an intention or plan, or accompanied by other changes in your mood or behaviour.
What “the call of the void” means
“Call of the void” is an informal expression for a sudden, unwanted thought about doing something dangerous or self-destructive. Standing on a roof, bridge or cliff and imagining a jump is the example most people recognise. Cleveland Clinic’s explainer also mentions swerving into traffic or stepping onto train tracks. The phrase sounds dramatic, but it is not a medical diagnosis.
The more specific term used in academic papers is high place phenomenon. HPP describes the thought or urge that occurs in a high place; it does not tell you why it happened, whether you intended to act, or whether you have a psychiatric condition. You can read the original 2020 German study in BMC Psychiatry and the Cleveland Clinic overview at Cleveland Clinic.
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| Experience | What it describes | What it does not establish |
|---|---|---|
| Unwanted fleeting thought | A mental image, sentence or sensation that appears suddenly and feels out of character | That you want to carry it out |
| High place phenomenon | The high-place version of that experience, whether or not you have a diagnosis | A universal cause or a measure of your personal risk |
| Suicidal intent | A wish, intention or plan to die, which requires a separate, direct assessment | Something that can be inferred from HPP alone |
Does the thought mean you secretly want to die?
No single answer can determine an individual’s safety, but the thought alone is not proof of a hidden death wish. In the 2020 German samples study, HPP was reported by people with and without a lifetime history of suicidal ideation. The authors explicitly wrote, “It is therefore cautioned not to interpret such experiences as an expression of a hidden death wish.” That warning applies to interpreting a group finding; it is not a personal safety assessment.
A fleeting, unwanted image is different from wanting to die, deciding to act, preparing to act or being unable to keep yourself safe. Those distinctions matter when you decide whether to seek help. If you are unsure which description fits, tell a clinician exactly what happens: where you are, what the thought says, whether you want it, whether you have made a plan and whether you can move away from danger.
How often has HPP been reported?
There is no reliable worldwide prevalence figure. The percentages below come from particular samples recruited in particular ways, so they should not be treated as the share of all people who have ever stood at a height.
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| Study and sample | Reported finding | Important limitation |
|---|---|---|
| Wiesmann and colleagues, 2020; 276 adults in an online German sample | 59.8% reported experiencing HPP at least once in their lifetime | Participants were recruited through university postings and identified as Caucasian; this was not a representative global sample |
| Wiesmann and colleagues, 2020; 94 patients with fear of flying | 45.7% reported lifetime HPP | This clinical group had a specific fear-related reason for treatment and was not matched to the online sample |
| Wiesmann and colleagues, 2020; online respondents without lifetime suicidal ideation | 45.2% reported HPP at least once | The result shows that HPP can occur without a reported history of suicidal ideation; it cannot determine any one person’s current intent |
| Asgari and colleagues, 2025; two Iranian adult samples | Between 39% and 62% reported familiarity with HPP, depending on the sample | The samples and measures were specific to that study and should not be generalised to every population |
| Wiesmann, Melzer and Teismann, 2025; anonymous online sample of 476 participants | A five-factor Call of the Void Scale measured frequency in different situations, the thought’s ego-dystonic character and safety behaviour, among other factors | This was a scale-development sample; the authors said more work is needed to establish clinical relevance |
The German online and fear-of-flying figures are not competing estimates of the same population. One is a self-selected online group and the other is a clinical group with a particular anxiety problem. The Iranian percentages likewise describe the two samples in that paper, not a national rate.
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No settled explanation exists. One proposal discussed in the 2020 paper is that a rapid safety response occurs near a drop: your brain detects danger and produces a signal equivalent to “Back up, you might fall.” A person may then misread awareness of the danger as an impulse to jump. That account is plausible, but the study was cross-sectional and could not prove the sequence. Recall errors or other explanations remain possible.
Cleveland Clinic psychologist Lauren Alexander, PhD, gives a similar, carefully qualified explanation: “We don’t really know what causes this phenomenon, but there may be some confusion between recognizing danger and your brain’s impulse to act on it — even if you don’t actually want to.” The statement describes a possibility, not a demonstrated survival reflex. Popular claims that neuroscience has proved one universal mechanism go beyond what the available studies establish.
Context can change how the thought feels. A person who is already anxious may notice bodily alarm more intensely; someone with intrusive thoughts may be particularly distressed by an image that conflicts with their values. Neither observation identifies a cause in an individual case.
What links have been found with mental health?
Several papers report associations between HPP measures and mental-health symptoms, but an association is not a diagnosis, proof of causation or a prediction of your future behaviour.
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Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →- In the 2025 Iranian study, HPP severity was associated with obsessive-compulsive symptom severity in both adult samples. Whether HPP was present at all was associated with those symptoms in only one sample.
- The 2025 Call of the Void Scale paper reported that several frequency and safety-behaviour subscales correlated with measures of depression, stress, anxiety and suicidal ideation or behaviour. The anonymous online design cannot show that HPP caused those symptoms.
- The 2020 German paper found HPP among respondents both with and without lifetime suicidal ideation, with different patterns in its online and fear-of-flying groups.
That evidence does not support either extreme: HPP is not automatically suicidal, and it is not automatically harmless. A clinician would consider the thought’s content, how often it occurs, your level of distress, any compulsive checking or avoidance, mood symptoms, substance use, access to means and whether you have intent or a plan.
When a fleeting thought deserves professional attention
Arrange an appointment with a primary-care provider or therapist if the thoughts keep returning, make you avoid normal activities, raise a safety concern or occur with persistent anxiety, depression or sleep changes. You do not need to wait until you have a diagnosis. A useful description might be: “When I am near a height, I get an unwanted image of jumping. I do not want to die, but it scares me and is happening more often.”
Seek urgent help rather than handling the situation alone if the thought has become a wish, intention or plan; you are taking steps toward acting; you cannot reliably move away from the edge; or you are using alcohol or drugs and feel less in control. If another person tells you they may act, stay with them if it is safe, move to a safer location and contact emergency or crisis services.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What to do when it happens at a height
- Create distance. Step back from the edge, barrier or traffic and keep both feet on a stable surface. If possible, leave the high place rather than testing whether the thought will return.
- Name the experience accurately. You can say, “This is an unwanted high-place thought,” rather than treating it as an instruction or a revelation about your character.
- Let the thought pass without arguing with it. Cleveland Clinic advises allowing the thought to come and go instead of suppressing it or treating it as proof of who you are. Notice it, return attention to the environment and continue only when you are safely away from the hazard.
- Check intent directly. Ask yourself whether you want to die, have decided to act, have made a plan or feel unable to keep yourself safe. Any “yes” or uncertainty on those questions warrants immediate support, not self-testing at the edge.
- Tell someone if it is recurring. A trusted person can accompany you while you arrange care and can help you avoid risky situations during a period when you feel less steady.
These steps are immediate risk management, not a substitute for an assessment. Do not use a prevalence percentage or the label HPP to reassure yourself that you are safe when your own thoughts or actions indicate otherwise.
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How to get help
For recurring or distressing thoughts without immediate danger, make an appointment with a primary-care provider or licensed therapist. They can assess anxiety, depression, obsessive-compulsive symptoms, trauma, substance use and suicidal thinking instead of guessing from one symptom. Bring a note of when the thoughts occur, how long they last, what you do in response and whether they have changed.
In the United States, Cleveland Clinic directs people in crisis to call, text or chat with 988. If you are elsewhere, its explainer points to the International Association for Suicide Prevention directory for local crisis lines. If you may act now, cannot get away from the hazard or have already injured yourself, call your local emergency number or go to an emergency department immediately; do not wait for an online explanation to settle the question.
What you can safely conclude
The phrase “call of the void” gives a recognisable name to an unsettling experience, while HPP is the more specific term for thoughts or urges to jump at a height. The experience has been reported in several samples, including by people who did not report lifetime suicidal ideation, but those numbers are not a global rate and cannot assess an individual.
Scientists and clinicians have proposed explanations involving the brain’s detection of danger and the interpretation of that alarm, yet no single cause has been established. Mental-health correlations make persistent or safety-related experiences worth discussing with a professional; they do not turn one unwanted thought into a diagnosis. The decisive question is not whether you know the phrase, but whether you have intent, a plan or difficulty staying safe right now.
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