There is a direct association between cardiovascular responses and extreme temperature changes. Increased environmental temperatures require increased blood flow to the skin – as we try to maintain our normal body temperature. When we experience elevated environmental temperatures, this can cause dehydration – Lower Blood Pressure and Heart Rate, leading to increased demands on the heart.
Heat-related illnesses (heat exhaustion/stroke) can also hurt the normal functioning of your heart. If you experience any existing cardiovascular issues (e.g., hypertension, heart disease), these added exertion levels can significantly increase your likelihood of having a heart attack or stroke during periods of extreme heat.
Practical Ways to Protect Your Heart During Heatwaves
The best way to reduce the strain on your body is to decrease your bodily exertion level and to maintain a consistent level of hydration. This means drinking water throughout the day, and before you start feeling thirsty, because dehydration causes thicker blood, which creates a heavier workload for the heart.
When the sun is highest in the sky and therefore so is the potential for heat stress, you should avoid outdoor activities until the sun sets. In addition to that, wearing lightweight and breathable clothing and remaining in the shade or in a controlled climate provides the best opportunities for improved body temperature regulation.
It is also important to modify your exercise routine—they should be performed during early morning and late evening when temperatures are cooler, and it would be wise to gradually increase physical activity level during high temperatures. If you are using medications such as blood pressure medication or other medications with potential cardiovascular side effects, speak to your physician about your medication and exercise level during days of extended heat.
Warning Signs You Should Not Ignore
Cardiac stress as a result of heat has many early warning signs, including rapid heartbeat, dizziness, fatigue that seems out of the ordinary, discomfort in the chest, and shortness of breath. Continuing to function in spite of these symptoms can lead to serious complications.
Individuals who are at high risk should be especially vigilant, including the elderly, outdoor workers, and those with chronic conditions. Drinking enough fluids, cooling down, and treating the symptoms early can reduce the potential for developing serious complications.
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Final Words
The only way to be proactive towards your heart and remain healthy during times of extreme heat (hot weather) is by making small changes in your purchase, usage, and awareness of fluid intake that can lower the risk for heart disease. The increased frequency of heat-related illness makes it necessary for us to view heat as a significant health concern rather than merely an inconvenience.
FAQs
1) Will heat cause a heart attack?
Yes, heat causes great strain on your body and could lead to cardiac problems.
2) How do I know how much water to drink?
You should drink water throughout the day before you feel thirsty.
3) Can I exercise in the heat?
Yes, ONLY at cooler times of day and at lower intensities of exercise.
4) Who is at most risk?
Older adults, people with heart problems, and people working outdoors during extreme heat.
