Can lack of sleep cause panic attacks?
Sleep deprivation does not directly cause panic attacks but significantly lowers the threshold for them in susceptible people. The combination of cortisol dysregulation and amygdala hyperreactivity creates the conditions.
The threshold effect
Walker (2017) discusses how sleep loss amplifies amygdala reactivity by 60% in healthy adults. For someone predisposed to panic, this means a normally manageable trigger can tip into a full attack.
Cortisol and arousal
Sleep deprivation keeps cortisol elevated, mimicking the physiological state of a panic precursor. Chest tightness, rapid heart rate, and shallow breathing all become more likely.
The intervention
Restoring 7–9 hours of consolidated sleep often reduces panic frequency dramatically. CBT-I and sleep hygiene work alongside any anti-anxiety treatment.
Sources
- Matthew Walker, Why We Sleep (Scribner, 2017). Why We Sleep: Unlocking the Power of Sleep and Dreams
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