While summer means vacation and outdoor activities for many, rising temperatures can place a significant strain on the cardiovascular system. Professor Dr. Can Yücel Karabay, a Cardiology Specialist at Yeditepe University Hospitals, emphasizes that heat waves can pose serious health risks, especially for older individuals and heart patients, and stresses the importance of taking simple yet effective precautions to protect heart health during the summer months.

How Does Hot Weather Affect the Heart?

Professor Dr. Karabay stated that many people tire more easily in hot weather, have difficulty climbing stairs, or become breathless during short walks, adding that this cannot be explained solely by the feeling of heat. Professor Dr. Can Karabay said, "The body works harder in hot weather to maintain its normal temperature. Blood vessels dilate, blood flow to the skin increases, and the heart exerts more effort to meet the body's needs. This usually doesn't cause problems in healthy individuals, but for those with heart disease, hot weather can become a significant stress factor."

Who is at Greater Risk in Hot Weather?

Professor Dr. Karabay stated that hot weather affects everyone, but the risk is higher in certain groups, adding that patients with heart failure, coronary artery disease, those being treated for high blood pressure, and the elderly should be more careful. He emphasized that fluid loss can progress unnoticed, especially in elderly people living alone, and stressed that adequate fluid intake is a crucial part of heart health during the summer months.
Professor Dr. Karabay noted that dehydration in hot weather can put an extra strain on the heart, saying, "Sometimes, by the time the feeling of thirst arises, the body may have already lost a significant amount of fluid. Elderly patients, in particular, need to pay attention to regular fluid intake. Waiting until you feel thirsty often means it's too late."

What Should Heart Patients Do in Hot Weather?

Professor Dr. Karabay stated that a significant portion of heart patients take medication regularly, and that fluid loss can become more pronounced in hot weather, especially in those using diuretics. He noted that some patients may need to re-evaluate their medication during the summer months , adding, "Patients should not change their medication on their own. If it is thought that medication needs to be reduced or discontinued, this decision must be made under the supervision of a doctor."

What Can We Do to Protect Our Heart Health in Hot Weather?

Professor Dr. Karabay stated that simple precautions taken during the summer months can prevent serious health problems, emphasizing the importance of avoiding prolonged sun exposure, especially between 11:00 AM and 4:00 PM, the hottest hours of the day. He recommended that outdoor walks and exercises be done early in the morning or in the cooler evening hours, adding that adequate fluid intake, light meals, and regular sleep are also crucial in combating hot weather.
Professor Dr. Can Yücel Karabay offered the following recommendations for protecting heart health during hot weather: