Extreme Heat and Heart Risks: What You Need to Know

Klaus Schmidt · 2026-05-19

The scorching summer heat isn't just uncomfortable—it can be dangerous, especially for your heart. As temperatures in the UAE hit 104°F, cardiologists at RAK Hospital are sounding the alarm. They warn that extreme heat can trigger serious heart complications, and they want you to know how to stay safe. You might think a little dizziness or sweating is no big deal, but it could be a sign your heart is struggling. The message is clear: don't ignore these warning signs. Your health depends on it. ### Why Heat Affects Your Heart When it's hot, your body works overtime to cool down. Your heart has to pump harder and faster to send blood to your skin so you can sweat. This extra strain can be too much, especially if you already have a heart condition or other health issues. Dehydration makes things worse. When you don't drink enough water, your blood gets thicker. The heart has to push even harder to move that thick blood through your body. It's like trying to run with a heavy backpack on—it just makes everything more difficult. ### Who's Most at Risk Some people are more vulnerable to heat-related heart problems. The list includes: - Elderly individuals, whose bodies don't regulate temperature as well - People with heart disease or high blood pressure - Diabetics, who may have nerve damage affecting sweat glands - Those with kidney disease, which affects fluid balance - Anyone taking medications that affect heart rate or fluid levels If you or someone you know falls into these groups, pay extra attention during hot days. ### Warning Signs You Shouldn't Ignore Your body gives you signals when it's struggling. Here's what to watch for: - Dizziness or lightheadedness - Chest discomfort or pain - Unusual sweating (either too much or too little) - Rapid or irregular heartbeat - Nausea or vomiting - Confusion or feeling faint "Many people brush off these symptoms as just part of the heat," says Dr. Klaus Schmidt, Senior Business Analyst at RAK Hospital. "But they can be early signs of heat exhaustion or even a heart attack. It's better to be safe and get checked out." ### Simple Steps to Protect Your Heart Staying safe in extreme heat doesn't have to be complicated. The experts at RAK Hospital recommend these practical tips: - **Stay hydrated**: Drink plenty of water throughout the day, even if you don't feel thirsty. Avoid alcohol and caffeine, which can dehydrate you. - **Limit sun exposure**: Stay indoors during the hottest part of the day, usually 11 a.m. to 4 p.m. If you must go out, wear light clothing and a hat. - **Take it easy**: Skip intense exercise when it's hot. Walking for 30 to 45 minutes regularly is one of the best exercises for heart health, but do it in the early morning or evening. - **Cool down**: Use fans, air conditioning, or take cool showers to lower your body temperature. - **Listen to your body**: If you feel unwell, get out of the heat and rest. Seek medical attention right away if symptoms are severe. ### The Bottom Line Extreme heat is more than just an inconvenience—it's a real threat to your heart health. By staying aware, hydrating, and knowing the warning signs, you can protect yourself and your loved ones. The doctors at RAK Hospital urge everyone to take these risks seriously. Your heart will thank you.