Professor Cardiologist, who told that cold air affects the heart patients and sudden heat change can cause heart attack and death. Proffessor warned his heart patients about the cold weather, "They should not go out as much as possible, and when they go out they should walk in the way that the wind will take their backs."
He also added that "The response of every human body to cold weather can be different: Age, physical condition, number and severity of underlying chronic diseases affect response to cold, hypertension, coronary artery disease, diabetes, high cholesterol, smoking, obesity, family history of heart disease people with risk factors should be more careful to avoid the risk of heart attack and must go through a new health check before entering winter."