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Related Experiment Videos

Killer dreams

M S Parmar1, A F Luque-Coqui

  • 1Department of Medicine, Timmins and District Hospital, Ontario. atbeat@ntl.sympatico.ca

The Canadian Journal of Cardiology
|December 17, 1998
PubMed
Summary
This summary is machine-generated.

Intense emotional stress from nightmares can trigger dangerous coronary artery spasms and dissections, even in individuals without prior heart disease. These

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Area of Science:

  • Cardiology
  • Psychophysiology
  • Autonomic Nervous System Research

Background:

  • Emotional stress is a known factor in coronary artery spasm.
  • Folklore and medical history link intense dreams to sudden death, often involving physiological distress responses.
  • Autonomic nervous system activity during dreaming can critically impact cardiovascular health.

Observation:

  • Four patients experienced life-threatening cardiac events linked to nightmares or 'deadly dreams'.
  • These individuals had no underlying coronary artery disease.
  • The emotional stress from dreams precipitated acute coronary events.

Findings:

  • Two patients developed coronary artery dissection.
  • Two patients experienced coronary vasospasm.

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  • Both dissection and vasospasm were attributed to emotional stress from nightmares.

    • Implications:

    • Nightmares and intense dream experiences can precipitate serious cardiac events, including myocardial infarction and sudden cardiac death.
    • This highlights the critical role of the autonomic nervous system in mediating the cardiovascular effects of emotional stress during sleep.
    • Further research into the psychophysiological mechanisms linking dreams to cardiac events is warranted for preventative strategies.