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Heat related to the human body causes vein and artery dilation (expansion) and decreases pressure or blood flow (blood pressure). If a person has plaque severe enough that the body requires a certain pressure to push blood through it and you take that pressure away, the artery can spasm and close or be deprived of needed blood flow causing ischemia (lack of oxygen) or infarct (myocardial infarct or heart attack).

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14y ago
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11y ago

Yes! For sure! Especially if you have a fast heart rate to begin with! My can go from 120 to 160 or 170 just by stepping out in the heat!

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Q: Can heat cause a high heart rate?
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