Dr. Gregg Fonarow, a cardiology expert at the University of California (USA), said that when the body is dehydrated due to heat, reduced blood volume can cause blood pressure to drop or change suddenly. "Drinking water helps restore circulatory volume, thereby supporting blood pressure stabilization and reducing dizziness," he explained.
Experts recommend that when returning from the sunny weather, you should rest in a cool place for about 5-10 minutes to allow your body to adapt to temperature changes. Then you can drink a glass of filtered or warm water, divided into small sips for better absorption.
In addition to filtered water, some natural drinks such as coconut water or diluted lemonade also help replenish water and light electrolytes. However, you should limit drinks high in caffeine or sugar because they can cause heart rate and blood pressure fluctuations.
According to the American Heart Association (AHA), dehydration due to hot weather is one of the factors that can cause blood pressure to temporarily change, especially in the elderly or people with cardiovascular disease. Therefore, maintaining enough water and avoiding sudden temperature changes is a simple way to protect the cardiovascular system on hot sunny days.
