Czech experts warn high blood pressure raises heart attack risk in heat

A large international study of more than nine million people in South Korea and the United States found that high blood pressure precedes over 90 % of heart attacks, strokes and heart failure, with high cholesterol, elevated blood sugar and smoking also identified as major risk factors. Men are more likely than women to suffer heart attacks caused by atherothrombosis.

In the Czech Republic, meteorologists predict a heat wave with temperatures reaching 32‑34 °C. Health specialists advise people with cardiovascular conditions to stay well‑hydrated, limit outdoor activity during the hottest part of the day, monitor blood pressure regularly and maintain a healthy diet and regular moderate exercise. They also stress the importance of avoiding rapid standing and ensuring adequate salt intake for those with low blood pressure, which can cause dizziness when weather changes.

Overall, the advice emphasizes vigilant management of blood‑pressure–related risks during extreme heat and everyday lifestyle adjustments to prevent cardiovascular events.