Summer heat isn’t just about sun, vacations, and ice cream — it also puts extra stress on the cardiovascular system, especially in people with hypertension, arrhythmia, varicose veins, as well as the elderly and children.

When the air temperature rises above 25 °C, the body has to adapt to overheating — and even sitting in the shade, the heart works harder than usual.

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What happens to the body in the heat?

Blood vessels dilate — it’s a natural cooling response, but it can cause blood pressure to drop, especially in people with hypotension.
Sweating increases — with sweat, the body loses fluids, salts, and electrolytes, which may lead to dehydration.
The heart works harder — heart rate rises, and the need for oxygen increases.
This can be especially dangerous for those with existing heart conditions: ischemia, heart failure, or arrhythmias.

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How to reduce strain on the body during heat:

✅ Drink water in small portions — 100–150 ml every 20–30 minutes. Avoid sugary and carbonated drinks.
✅ Limit physical activity during peak heat (12:00–17:00). Mornings and evenings are best for walking.
✅ Wear light-colored, breathable clothes made from natural fabrics, and don’t forget a hat.
✅ Monitor your blood pressure, especially if you take medication. In the heat, it can drop or spike suddenly.
✅ Don’t skip prescribed medication — ask your doctor whether dosage adjustments are needed for summer.

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In the heat, don’t try to push your limits.
Stay in cool places, give your body time to adjust, and don’t ignore symptoms like dizziness, weakness, nausea, or shortness of breath.