Panic Attack Causes: Understanding What Triggers Sudden Episodes of Intense Anxiety

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Panic attacks can be frightening, overwhelming and often occur without warning. Many people who experience a panic attack describe it as feeling like a heart attack or a life-threatening emergency.

While panic attacks themselves are not dangerous, they should still be taken seriously, and measures should be taken to mitigate them. As the authors of one National Library of Medicine journal observe, they can cause ‘heavy personal and socioeconomic burdens.’

Understanding panic attack causes can help individuals mitigate triggers, manage symptoms and seek appropriate support.

In this article, we'll explore the most common panic attack causes, risk factors and triggers. Equipping yourself with this diagnostic toolkit will not only provide you with the theoretical underpinnings of why panic attacks happen but, more importantly, what can be done to reduce their occurrence.

What is a panic attack?

A panic attack is a sudden, almost explosive surge of intense fear or discomfort that rapidly reaches its peak. In minutes – sometimes in seconds – a person switches from a normal state to one that is overwhelming. Though unsettling to experience (in severe cases, they can be temporarily debilitating), a panic attack is an evolutionary survival strategy that developed to keep us safe.

You’ve no doubt heard of the fight-flight-freeze concept. This is a physiological response triggered by the brain’s ‘threat detection system’ – specifically the amygdala. The warning alarm sounds when danger is detected, ‘causing a massive spike in stress hormones like adrenaline,’ (Mayo Clinic).

In a world where we were the prey of such apex predators as the sabre-toothed tiger, this ancient neurological system enabled our ancestors to survive countless eons. Without it, we would have gone the way of the dodo.

However, what enabled our ancestors to survive a world ‘red-in-tooth-and-claw’ is often the source of much unnecessary discomfort today. The brain’s threat detection system has not evolved at the same pace as human civilisation.

An old system, in a bland new world

Nowadays, we mostly live in safe, law-abiding societies. Yet, we’re still carrying around in our heads an operating system that is millions of years old. It’s analogous to trying to work an iPad with a club or charging a Tesla over a campfire. The archaic amygdala is just not compatible with modernity, where our greatest threat is receiving a thumbs down for a holiday picture post.

Thus, perhaps we should forgive the brain for failing to differentiate a sabretooth from a social media toll. Both can trigger a panic attack, but only one presents a genuine danger.

Panic attack symptoms

During a panic attack, a person may experience physical and emotional symptoms such as:

• Rapid heartbeat

• Shortness of breath

• Chest pain

• Dizziness

• Sweating

• Trembling

• Nausea

• Feelings of losing control

• Fear of dying

Panic attacks can occur unexpectedly or be triggered by specific situations. Understanding the underlying causes is the first step toward effective management.

Common panic attack causes

Now that we’ve briefly reviewed what a panic attack is, why we experience them and their neurological basis and evolutionary origin, it’s time to turn our attention to causes and triggers.

Before progressing any further, please bear in mind that the following list is not exhaustive. The factors are selected from among the most common causes.

One may question why so few factors have been selected. After all, when we reflect on the vast disparity between how people respond to internal and external stimuli, it’s highly likely that most people’s panic attack causes are not listed. Though that is a fair criticism, few could question the rationale that an attempt to list every conceivable cause would result in an unendurably long piece of work, which would confer little benefit to the reader.

Highlighting the common causes appeals to a broader audience but also provides a basis of enquiry that enables anyone to investigate their own personal triggers.

1. Chronic stress

One of the leading causes of panic attacks is prolonged stress – also referred to as ‘chronic’ stress. When the body remains in a constant state of tension, the nervous system becomes overactive. Work pressures, financial worries, relationship problems and family responsibilities can all contribute to chronic stress levels.

Over time, excessive stress can overwhelm the body's coping mechanisms, making panic attacks more likely to occur. But studies have shown that simple strategies, such as walking in nature or participating in regular exercise, can alleviate stress.

2. Anxiety disorders

People diagnosed with anxiety disorders are at a higher risk of experiencing panic attacks. Conditions such as:

• Generalised Anxiety Disorder (GAD)

• Social Anxiety Disorder

• Health Anxiety, and

• Obsessive-Compulsive Disorder (OCD)

can increase sensitivity to stress and fear, creating an environment where panic attacks become more common. For example, a person prone to catastrophising, a symptom of anxiety, may inadvertently trigger a panic attack as their thoughts race uncontrollably. The same process could equally be applied to someone who is socially anxious.

But as with stress, there are many effective ways to manage and mitigate anxiety. For example, practicing yoga and engaging in meditation exercises have been shown to reduce anxiety in addition to promoting improved general mental health outcomes.

3. Genetic factors

Research suggests that genetics may play a role in panic attacks and panic disorder. If a close family member has experienced panic attacks, anxiety disorders, or other mental health conditions, your risk may be higher.

While genetics alone do not cause panic attacks, they can increase susceptibility when combined with environmental factors, such as, for example, when a person has been subjected to adverse childhood experiences (ACEs).

4. Major life changes

Significant life events can trigger panic attacks, especially when they involve uncertainty or emotional distress. A friend of mine developed panic attacks after a traumatic experience on a plane. Following this incident, even the thought of ‘being in the air’ induced a panic attack.

Other common examples include:

• Divorce or separation

• Job loss

• Moving to a new location

• Becoming a parent

• Retirement

• Death of a loved one

Even positive life changes can create stress and increase the likelihood of panic symptoms. This sounds contradictory until we consider the person who has recently received a promotion on the merit of past performance. The fear of failing to live up to expectations may begin to induce panic attacks.

5. Traumatic experiences

Trauma is a well-known contributor to panic attacks. Individuals who have experienced physical abuse, emotional abuse, accidents, violence, or natural disasters may develop heightened fear responses. This relationship is powerfully documented in the brilliant book, Upheaval: How Nations Cope with Crisis and Change.

Jarred Diamond reports that, during the 1941 Russian invasion, ‘daughters of those Finnish mothers evacuated as children are twice as likely to be hospitalised for psychiatric illness as are their female cousins born to non-evacuated mothers.’

The brain can remain on high alert after trauma, causing panic attacks to occur when reminders of the event are encountered.

Physical panic attack causes

While panic attacks are often associated with cognitive processes, physical factors can also contribute.

6. Hormonal changes

Hormonal fluctuations can affect mood, exacerbate anxiety and elevate the body's stress response. Many individuals report increased panic symptoms during:

• Pregnancy

• Postpartum periods

• Menopause

• Menstrual cycle changes

• Thyroid disorders

Hormonal imbalances can sometimes mimic or trigger panic attack symptoms.

7. Excessive caffeine consumption

Caffeine stimulates the nervous system and can produce symptoms similar to anxiety, including:

• Increased heart rate

• Restlessness

• Nervousness

• Shakiness

For individuals who are sensitive to caffeine (or other stimulants), consuming large amounts of coffee, energy drinks, or caffeinated beverages may trigger panic attacks.

Conversely, abruptly stopping caffeine intake can cause similar side effects. If a person suspects coffee as a panic attack trigger, public health recommends gradually tapering consumption.

8. Substance use and withdrawal

Certain substances can increase the risk of panic attacks. In addition to increasing risk factors, they can also worsen symptom severity. The primary culprits include:

• Alcohol

• Recreational drugs

• Nicotine

• Stimulants

Withdrawal from alcohol, benzodiazepines, or other substances can also cause severe anxiety and panic symptoms. Thus, as suggested above for coffee, it is advisable to taper intake gradually over the course of weeks.

9. Medical conditions

Some medical conditions may contribute to panic attack-like symptoms or trigger genuine panic attacks, including:

• Heart conditions

• Respiratory disorders

• Thyroid disease

• Low blood sugar

• Vestibular disorders

Anyone experiencing panic symptoms for the first time should consult a healthcare professional to rule out underlying medical issues.

Psychological triggers of panic attacks

Having reviewed a concise range of biological and physiological panic attack causes, we now turn to the final factor: psychological triggers.

In his critically acclaimed book, Why Zebras Don’t Get Ulcers, Robert M. Sapolsky makes a point of highlighting a curious quirk of the human condition. Unlike other animals, he observes, we possess the unenviable capacity to cause ourselves stress, anxiety and panic attacks – by just thinking! (It’s like possessing the antithesis of a superpower. Instead of being able to fly at supersonic speeds, we can scare ourselves.)

Herein lies the secret of why zebras don’t get ulcers – and why humans do. After narrowly escaping the jaws of a hungry lion, zebras can be found moments later nibbling grass without a care in the world. Looking at them, it’s as if nothing has happened. Fortunately for them, they do not dwell on their near-death experience. No zebra ever developed PTSD. Thus, they don’t get ulcers, anxiety or suffer panic attacks.

Humans, by contrast, can whip up any one of the above while watching zebras being chased by hungry lions. Here are some psychologically induced panic attack causes to run away from.

10. Fear of panic itself

Franklin D. Roosevelt famously said, ‘The only thing we have to fear is fear itself.’ However, as we’ll see, if your objective is to maintain equanimity, it’s best to avoid fear entirely.

Interestingly (if not ironically), reports show that one of the most ubiquitous panic attack causes is the fear of having another panic attack. This is known as the "fear cycle."

After suffering a panic attack, which for many can be a dreadful experience, individuals may become hyperaware of bodily sensations. A slight increase in heart rate or breathing changes may be interpreted as a warning sign, triggering another attack.

This cycle can lead to panic disorder if left untreated. An effective method of mitigating the fear cycle, is to initiate a series of somatic grounding techniques. Anchoring your thoughts to physical contact points, naming items in your immediate environment or trying a bout of box breathing can all serve to break the fear cycle.

11. Catastrophic thinking

People prone to panic attacks often engage in catastrophic thinking patterns. For example:

• "My heart is beating fast; I must be having a heart attack."

• "I'm feeling dizzy; I might faint."

• "I can't breathe properly; something is seriously wrong."

These thoughts amplify fear and activate the body's fight-or-flight response, potentially leading to a panic attack.

12. Specific phobias

It’s been said that all humans have genetically embedded fears – towards spiders, snakes and heights, for example. However, due to the profound learning capacity of the human brain, to that list could be added an infinite array of other fears. These are sometimes referred to as ‘learned fears’ or, more colloquially, phobias.

According to Harvard Health, ‘a phobia is a persistent, excessive, unrealistic fear of an object, person, animal, activity, or situation. It is a type of anxiety disorder.’

Exposure to feared situations or objects can trigger panic attacks in susceptible individuals. According to Very Well Mind, the ten most common phobias include:

• Arachnophobia: an intense fear of spiders and other arachnids

• Ophidiophobia: an intense fear of snakes

• Acrophobia: an intense fear of heights

• Aerophobia: an intense fear of flying

• Cynophobia: an intense fear of dogs

• Astraphobia: an intense fear of thunder and lightning

• Trypanophobia: an intense fear of injections

• Social phobia: an intense fear of social interactions

• Agoraphobia: an intense fear of places that are difficult to escape, sometimes involving a fear of crowded or open spaces

• Mysophobia: an intense fear of germs, dirt, and other contaminants

When confronted with these situations, the body's alarm system may react intensely.

Risk factors for panic attacks

Several factors can increase the likelihood of experiencing panic attacks:

• Family history of anxiety disorders

• High-stress lifestyles

• Childhood trauma (or historic trauma)

• Perfectionist personality traits

• Poor sleep quality

• Ongoing health concerns

• Significant life transitions

Having one or more risk factors does not guarantee panic attacks, but it may increase vulnerability.

How to reduce panic attack triggers

While not all panic attacks can be prevented, certain lifestyle changes may reduce their frequency and intensity:

Prioritise stress management

Practice stress-reduction techniques such as:

• Deep breathing exercises

• Meditation

• Yoga

• Mindfulness

• Regular relaxation activities

Get regular exercise

Physical activity helps regulate stress hormones and improves overall mental wellbeing.

Improve sleep quality

Poor sleep can worsen anxiety and increase the risk of panic attacks. Aim for consistent, restorative sleep each night.

Limit caffeine and alcohol

Reducing stimulant intake may help minimise anxiety symptoms and panic triggers.

Seek professional support

Therapy, particularly Cognitive Behavioural Coaching (CBC), has proven highly effective in treating panic attacks and panic disorder.

When to seek help

If panic attacks are becoming frequent, interfering with daily life, or causing significant distress, professional support is recommended. Mental health professionals can identify underlying causes and develop a personalised treatment plan.

Early intervention often leads to better outcomes and can prevent panic attacks from developing into more persistent anxiety disorders.

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Conclusion

Understanding the causes of panic attacks is essential for effective prevention and management. Panic attacks can result from a combination of psychological, physical, genetic and environmental factors. Stress, anxiety disorders, trauma, hormonal changes and lifestyle habits all play important roles.

By recognising common triggers and seeking appropriate support, individuals can regain confidence, reduce anxiety and improve their overall quality of life. If panic attacks are affecting your daily functioning, speaking with a healthcare professional is an important step toward recovery and long-term wellbeing.

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References

Brain Mechanisms Underlying Panic Attack and Panic Disorder

Guan X, Cao P. Brain Mechanisms Underlying Panic Attack and Panic Disorder. Neurosci Bull. 2024 Jun;40(6):795-814. doi: 10.1007/s12264-023-01088-9. Epub 2023 Jul 21. Erratum in: Neurosci Bull. 2024 Jun;40(6):856. doi: 10.1007/s12264-024-01203-4. PMID: 37477800; PMCID: PMC11178723.

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About Dr Laura Allen –

A Chartered Psychologist & Integrative Therapist, Dr Allen specialises in a broad range of therapeutic methods. She is a published author of numerous research papers and Interactive Courses in the field of Psychology. Dr Allen works one-to-one with clients and supervises other practitioners. She is also a proud member of the British Psychological Society assessment team supporting psychologists in training.