RAK Hospital warns extreme heat can trigger dangerous heart complications

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RAK Hospital specialists warned that extreme heat can increase cardiac risks, especially among elderly residents and patients with chronic conditions.

RAS AL KHAIMAH: Doctors at RAK Hospital are urging UAE residents to take extreme heat seriously after temperatures crossed 40°C across several parts of the country this week.

Medical experts warned that prolonged exposure to high temperatures can place dangerous strain on the cardiovascular system and potentially trigger severe medical emergencies. According to cardiologist Dr Ahmed Sharafeldin, dehydration caused by excessive sweating can thicken the blood and force the heart to work significantly harder to maintain circulation.

The extreme heat heart risks are especially serious for elderly individuals and patients with diabetes, kidney disease, hypertension, heart failure or those recovering from heart procedures. Doctors said many people mistakenly dismiss symptoms such as dizziness, unusual sweating or chest discomfort as normal summer exhaustion, delaying urgent treatment.

Dr Sharafeldin explained that dehydration increases blood viscosity, placing additional stress on the heart and potentially increasing clotting risks that may contribute to heart attacks or strokes. He warned that outdoor workers and people spending extended periods in direct sunlight face a much higher risk during peak summer months.

The hospital advised residents to remain hydrated by drinking at least 1.5 to 2 litres of water daily unless medically restricted. Experts also recommended reducing excessive caffeine and salty food intake, which can worsen dehydration during extreme temperatures.

Doctors stressed that symptoms including chest pain, shortness of breath, fainting, rapid heartbeat or pain spreading to the neck and arm should never be ignored. Immediate medical attention is recommended if warning signs appear after prolonged outdoor exposure.

While physical activity remains important for long-term heart health, specialists advised avoiding strenuous outdoor exercise during afternoon heat. The extreme heat heart risks can be reduced by walking during early morning or evening hours, with doctors recommending regular 30 to 45-minute walks under safer weather conditions.

RAK Hospital encouraged residents to prioritise preventive care and monitor existing medical conditions closely throughout the UAE summer season.

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