21:42 / 17.07.2025

Why does blood pressure increase in the summer and what is the solution?

Summer’s intense heat and dry weather affect not only our mood but also our health. For people living with high blood pressure (hypertension), this season requires special attention. While many expect their blood pressure to drop in hot weather, the reality is often the opposite. Let’s explore why that happens and how to deal with it.

According to experts, in healthy individuals, blood vessels expand in heat, leading to a natural drop in blood pressure. However, in people with hypertension, this mechanism can reverse — causing blood pressure to rise. This is mostly due to physiological stress and a lack of oxygen.

When the air temperature rises above 25°C, the body loses a significant amount of fluid. This leads to thicker blood, making circulation more difficult and increasing blood pressure. This condition poses a serious risk of heart attacks and strokes.

That’s why it’s crucial to monitor your blood pressure regularly in summer. If you have hypertension, check your blood pressure at least twice a day — morning and evening. This helps identify problems early and take preventive action.

Stay hydrated throughout the day — drink plenty of clean water. Dehydration, especially in older adults, affects blood flow. Eat foods rich in potassium and magnesium like bananas, leafy greens, vegetables, and legumes.

Physical activity is also vital: light exercise, walking, cycling, or even dancing helps improve circulation and stabilize blood pressure. Take evening walks when it’s cooler, for at least 30–40 minutes.

Avoid going out during peak sun hours — between 11:00 AM and 4:00 PM. If you must be outdoors, wear breathable clothing, a hat, and apply sunscreen.

Adjust your diet: reduce fried, salty, and fatty foods. Opt for fruits, vegetables, fish, and healthy grains instead.

In short, while summer may increase the risk of hypertension, it's manageable. Listen to your body, maintain a healthy lifestyle, and follow medical advice — and the season can still be safe and beneficial for your health.