Cold weather may pose threats to your heart and lungs
Cold Weather and Heart Health: A Winter Warning
As the mercury drops, it's essential to understand the impact of extreme cold on our heart and lungs.
In cold weather, blood vessels constrict to keep in heat, causing blood pressure to rise and forcing the heart to work harder. This increased workload can lead to an elevated risk of heart attacks, particularly in people with heart disease. Shivering, a common response to cold, also increases oxygen demand, further straining the heart.
For those with lung conditions such as asthma or COPD, inhaling cold, dry air can irritate airways, cause narrowing, and provoke constriction. This can worsen symptoms, leading to breathing difficulties like coughing, wheezing, and shortness of breath. In some cases, cold air can trigger spasms in the lung for people with COPD, creating symptoms similar to an asthma attack.
To protect yourself, avoid prolonged exposure to extreme cold, particularly outdoor strenuous activities like snow shoveling, which increase cardiac strain. Wear appropriate clothing to keep warm, and cover your nose and mouth with a scarf to warm and humidify inhaled air, reducing airway irritation. Use prescribed inhalers before going out in cold weather to prevent airway constriction.
Monitor symptoms closely and seek prompt medical care if chest pain, severe shortness of breath, or wheezing occur. Stay dry and avoid sudden temperature shifts if possible, as rapid changes can exacerbate breathing problems. Consider indoor exercise alternatives when outdoor conditions are harsh.
Dressing warmly with layers is important when the mercury drops as it traps warm air next to your body. Shoveling snow or walking through heavy, wet snow or snow drifts can put extra stress on your heart in cold weather. Taking frequent rest breaks during shoveling helps prevent overstressing your heart.
Remember, hypothermia is a condition where the body's core temperature falls below 95 degrees, and frostbite can occur when exposed to sub-freezing temperatures. By taking these precautions, you can help reduce the strain on your heart and lungs from extreme cold and prevent related complications.
Stay warm, stay safe, and enjoy the winter season responsibly.
[1] American Heart Association. (2019). Cold weather and heart health. Retrieved from https://www.heart.org/en/health-topics/heart-attack/understand-the- warning-signs-of-a-heart-attack/cold-weather-and-heart-health
[2] National Heart, Lung, and Blood Institute. (2019). Cold weather and your heart and lungs. Retrieved from https://www.nhlbi.nih.gov/health/health-topics/topics/cold/
[3] Mayo Clinic. (2018). Cold weather and your heart. Retrieved from https://www.mayoclinic.org/diseases-conditions/heart-disease/in-depth/cold-weather/art-20047217
[5] National Institute of Environmental Health Sciences. (2019). Cold temperatures and your health. Retrieved from https://www.niehs.nih.gov/health/topics/agents/cold-temperatures/index.cfm
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