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Heat and the Heart

Yash Desai1, Haitham Khraishah2, Barrak Alahmad3,4,5

  • 1Department of Internal Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.

The Yale Journal of Biology and Medicine
|July 3, 2023
PubMed

Insights

Extreme heat significantly impacts heart health, worsening cardiovascular diseases like heart attack and stroke. More research is crucial to understand heat

Area of Science:

  • Cardiology
  • Environmental Health
  • Public Health

Background:

  • Cardiovascular disease is the leading global cause of mortality.
  • Extreme heat poses significant risks to cardiovascular health, particularly for individuals with pre-existing conditions.

Purpose of the Study:

  • To review the relationship between heat exposure and major cardiovascular diseases.
  • To explore the physiological mechanisms underlying heat's adverse effects on the heart.

Main Methods:

  • Literature review of epidemiological studies.
  • Analysis of physiological responses to high temperatures.

Main Results:

  • Heat exposure is linked to increased risks of ischemic heart disease, stroke, heart failure, and arrhythmia.
  • Physiological responses to heat include dehydration, increased metabolic demand, hypercoagulability, electrolyte imbalances, and systemic inflammation, straining the heart.

Conclusions:

  • Understanding the mechanisms linking heat and cardiovascular disease requires further research.
  • Clinical guidelines are needed to manage cardiovascular conditions during heat events, emphasizing the role of healthcare professionals in addressing climate change impacts on health.

Keywords:
CVDClimate changeHeatwavesHot temperaturescardiovascular

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