What causes panic attacks, and how can you prevent them? - Cindy J. Aaronson

4,984,911 views ・ 2020-10-08

TED-Ed


Please double-click on the English subtitles below to play the video.

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The body becomes its own corset.
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Past, present, and future exist as a single force.
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A swing without gravity soars to a terrifying height.
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The outlines of people and things dissolve.
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Countless poets and writers have tried to put words
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to the experience of a panic attack—
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a sensation so overwhelming, many people mistake it for a heart attack, stroke,
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or other life-threatening crisis.
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Though panic attacks don’t cause long-term physical harm,
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afterwards, the fear of another attack can limit someone’s daily life—
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and cause more panic attacks.
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Studies suggest that almost a third of us
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will experience at least one panic attack in our lives.
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And whether it’s your first, your hundredth,
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or you’re witnessing someone else go through one,
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no one wants to repeat the experience.
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Even learning about them can be uncomfortable, but it’s necessary—
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because the first step to preventing panic attacks is understanding them.
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At its core, a panic attack is an overreaction to the body’s
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normal physiological response to the perception of danger.
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This response starts with the amygdala,
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the brain region involved in processing fear.
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When the amygdala perceives danger,
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it stimulates the sympathetic nervous system,
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which triggers the release of adrenaline.
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Adrenaline prompts an increase in the heart and breathing rate
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to get blood and oxygen to the muscles of the arms and legs.
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This also sends oxygen to the brain, making it more alert and responsive.
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During a panic attack,
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this response is exaggerated well past what would be useful
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in a dangerous situation,
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causing a racing heart, heavy breathing, or hyperventilation.
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The changes to blood flow cause lightheadedness
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and numbness in the hands and feet.
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A panic attack usually peaks within 10 minutes.
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Then, the prefrontal cortex takes over from the amygdala
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and stimulates the parasympathetic nervous system.
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This triggers the release of a hormone called acetylcholine
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that decreases the heart rate and gradually winds down the panic attack.
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In a panic attack, the body’s perception of danger
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is enough to trigger the response we would have to a real threat— and then some.
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We don't know for sure why this happens,
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but sometimes cues in the environment that remind us
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of traumatic past experience can trigger a panic attack.
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Panic attacks can be part of anxiety disorders
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like PTSD, social anxiety disorder, OCD, and generalized anxiety disorder.
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Recurring panic attacks, frequent worry about new attacks,
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and behavioral changes to avoid panic attacks
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can lead to a diagnosis of a panic disorder.
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The two main treatments for panic disorder
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are antidepressant medication and cognitive behavioral therapy, or CBT.
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Both have about a 40% response rate—
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though someone who responds to one may not respond to the other.
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However, antidepressant medications carry some side effects,
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and 50% of people relapse when they stop taking them.
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CBT, meanwhile, is more lasting, with only a 20% relapse rate.
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The goal of CBT treatment for panic disorder is to help people learn
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and practice concrete tools to exert physical, and in turn mental,
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control over the sensations and thoughts associated with a panic attack.
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CBT begins with an explanation of the physiological causes of a panic attack,
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followed by breath and muscle exercises designed to help people
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consciously control breathing patterns.
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Next comes cognitive restructuring,
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which involves identifying and changing the thoughts
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that are common during attacks—
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such as believing you’ll stop breathing, have a heart attack, or die—
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and replacing them with more accurate thoughts.
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The next stage of treatment is exposure to the bodily sensations and situations
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that typically trigger a panic attack.
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The goal is to change the belief, through experience,
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that these sensations and situations are dangerous.
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Even after CBT, taking these steps isn’t easy in the grip of an attack.
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But with practice, these tools can both prevent and de-escalate attacks,
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and ultimately reduce the hold of panic on a person’s life.
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Outside formal therapy,
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many panickers find relief from the same beliefs CBT aims to instill:
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that fear can’t hurt you, but holding on to it will escalate panic.
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Even if you’ve never had a panic attack,
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understanding them will help you identify one in yourself or someone else—
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and recognizing them is the first step in preventing them.
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