The American Heart Association (AHA) issued guidelines urging people with heart disease to take precautions against extreme temperatures.
Data from the US Centers for Disease Control and Prevention (CDC) indicates over 1,200 heat-related deaths occur annually in the United States. “Proper safety measures can prevent heatstroke and related illnesses,” stressed AHA President Dr. Joseph Wu. “While everyone is susceptible to heat-related health problems, infants, the elderly, and individuals with high blood pressure, obesity, or a history of heart disease or stroke are especially vulnerable,” he added.
A recent study published in the AHA’s journal, ‘Circulation,’ suggests heat-related cardiovascular deaths could double in the next two decades, highlighting the specific risk for heart patients.
Heat safety tips
Dr. Wu outlined the following general heat safety measures:
- Time planning: Avoid midday sun exposure when heat intensity peaks and the risk of heatstroke is highest.
- Clothing: Wear loose-fitting, light-coloured, breathable clothing like cotton. Utilise protective accessories like hats and sunglasses. Apply and reapply broad-spectrum sunscreen with SPF 15 or higher every two hours.
- Hydration: Drink plenty of water before, during, and after outdoor activities or exercise. Avoid caffeinated and alcoholic beverages.
- Regular breaks: Seek shade or air conditioning, take breaks, rehydrate, and then resume activity.
Heatstroke symptoms
The AHA advises recognising these heatstroke warning signs:
- Headache
- Cool, pale, and clammy skin
- Rapid, weak pulse
- Dizziness and mild confusion
- Weakness or muscle cramps
- Nausea and vomiting
- Fainting
If you experience these symptoms, move to a cool place, stop exertion, cool your skin with water, and rehydrate. Medical attention may be necessary.
Seek medical help
If you experience a high body temperature (over 39.4°C), hot, red, dry, or moist skin, rapid and strong pulse, headache, dizziness, confusion, nausea, or fainting, call emergency services immediately.
Maintaining exercise
Regular physical activity remains important, even during hot weather. Opt for early morning or late afternoon workouts. If outdoor heat is excessive, consider exercising in air-conditioned spaces like malls, gyms, or community centres.
