Orange Heat Alert: Rising Temperatures May Trigger Heart Attacks – Here’s How to Stay Safe

As North India braces for a severe heatwave, the Indian Meteorological Department (IMD) has issued an orange heat alert for the coming days. With temperatures expected to soar dangerously high, doctors are warning individuals—especially those with pre-existing heart conditions—to take precautions. Extreme heat doesn’t just cause discomfort; it can increase your risk of heart attacks and strokes by putting added stress on your cardiovascular system.

In this post, we’ll explore the impact of heat on heart health, how certain medications can raise your risk, and expert tips on staying safe during heatwaves.

Why Heatwaves Increase the Risk of Heart Attacks

High temperatures cause your body to work overtime to maintain a stable internal temperature. This effort puts pressure on your heart, making it pump harder to circulate blood and regulate heat.

According to cardiologists:

• Excessive sweating leads to dehydration, which thickens the blood and reduces oxygen delivery to the heart.
• Heat alters blood viscosity, making it harder to clot properly, which is dangerous for those on blood thinners like aspirin.
• The heart must work harder, especially in those with existing cardiovascular conditions.
• Heat triggers stress hormones (like cortisol and adrenaline), increasing heart rate and blood pressure, further straining the heart.

Medications That May Increase Heat Sensitivity

Certain heart-related medications can worsen heat intolerance. Here’s how:

1. Beta-Blockers

Commonly used for blood pressure and heart disease, beta-blockers reduce blood flow to the skin, making it harder to cool the body, and increasing the risk of overheating.

2. Aspirin

This blood thinner can make the body more sensitive to extreme temperatures, affecting how it manages heat stress.

3. Diuretics (Water Pills)

Prescribed for high blood pressure or heart failure, diuretics increase urination. During a heatwave, this can lead to dehydration and electrolyte imbalances, impairing the body’s ability to cool down.

Tips to Protect Your Heart During a Heatwave

If you or a loved one has heart disease or is on heart medication, follow these expert tips to avoid heat-related complications:

• Stay Indoors During Peak Heat Hours: Limit outdoor activity between 11 a.m. and 4 p.m.
• Use Air Conditioning Whenever Possible: Staying in a cool environment helps regulate your body temperature.
• Hydrate Frequently: Drink plenty of water—even if you don’t feel thirsty. Avoid caffeinated or sugary drinks.
• Wear Breathable Clothing: Opt for lightweight, cotton clothes that allow air circulation.
• Monitor Symptoms: Dizziness, excessive sweating, shortness of breath, or chest pain require immediate medical attention.
• Consult Your Doctor: If you’re on medications like beta-blockers, diuretics, or aspirin, speak with your doctor about dosage adjustments or precautions during summer.

Who Is Most at Risk?

Those with:

• A history of heart attacks or strokes
• Chronic hypertension
• Elderly individuals and children
• Individuals taking multiple heart medications

As temperatures climb, so does the risk to your cardiovascular health. The orange heat alert across North India is a reminder to take proactive steps to protect yourself—especially if you have heart-related health conditions. By staying informed and prepared, you can reduce your risk of heat-related heart complications.

Disclaimer:
This article is for informational purposes only and should not be considered a substitute for professional medical advice. Always consult with your healthcare provider before making any changes to your medication, lifestyle, or treatment plan—especially during extreme weather conditions.