The drop in temperature during winter can directly affect the heart and cause symptoms of heart disease, especially during physical activities. Short days and cold winter temperatures encourage many people to seek warmth indoors, leading to significantly greater physical inactivity and an increased risk of heart disease. Additionally, cold outside air brings less oxygen to the blood, resulting in less oxygen to the heart, putting more strain on the heart when it needs it most. Doctors are encouraging people to think about heart health in winter, with moderate activity playing a key role. It is only important not to overdo it. Signs of heart disease It is important to pay attention to any possible symptoms of heart disease. Symptoms can easily appear during this time of year and can become increasingly severe, potentially leading to a heart attack. Symptoms of heart disease: Pain, discomfort, heaviness in the chest Discomfort in the arms, jaw, back, neck and abdomen Vomiting, dizziness and sweating Shortness of breath