Cold Weather Increases Risk of Heart Attacks
Aspirus Cardiologist Urges Caution
1/17/2025
Dr. Daniel Krause, an Aspirus Heart Care Cardiologist
As temperatures
drop, the risk of heart-related health issues, particularly heart attacks,
rises significantly. Research has highlighted the connection between cold
weather and cardiovascular events, raising concern for individuals in colder
climates or facing sudden temperature changes.
Cold weather poses
unique challenges for the body. “When temperatures fall, our bodies respond by
constricting blood vessels to conserve heat, which can raise blood pressure,”
said Dr. Daniel Krause, an Aspirus Heart Care cardiologist. “This added strain
on the heart can be especially dangerous for individuals with preexisting heart
conditions or those at risk of cardiovascular disease.”
Why Cold Weather
Increases Risk
Cold weather impacts
the cardiovascular system in several ways:
- Vasoconstriction:
The narrowing of blood vessels increases blood pressure, forcing the heart to
work harder.
- Increased
Blood Clotting: Cold temperatures can cause blood to thicken, which may elevate
the risk of clot formation.
- Elevated
Heart Rate: Activities like shoveling snow or outdoor exercise can strain the
heart, especially for those unaccustomed to such exertion.
- Decreased
Oxygen Supply: Cold air can irritate the lungs, reducing oxygen levels and
increasing cardiac strain.
Who Is Most at Risk?
Certain groups are
more vulnerable to cold-weather-related heart issues, including:
- Older
adults
- Individuals
with existing cardiovascular disease
- Smokers
- Those
with high blood pressure or diabetes
- People
engaging in sudden, strenuous outdoor activities
Recognizing the
Warning Signs
Recognizing the
signs of a heart attack is crucial. Symptoms to watch for include:
- Chest
pain or discomfort
- Shortness
of breath
- Pain
radiating to the arm, neck, or jaw
- Cold
sweats or lightheadedness
“If you or someone
you’re with experiences these symptoms, call 911 immediately,” Dr. Krause
emphasized. “Quick action can save lives.”
Aspirus encourages
the community to take simple precautions to protect their heart health, such as
dressing warmly, avoiding sudden physical exertion outdoors, and staying
hydrated. For more information or to connect with an Aspirus cardiologist,
visit Aspirus.org.
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