Individuals with pre-existing conditions like high blood pressure, diabetes, or high cholesterol are at greater risk of heart attacks during winter. The elderly, smokers, and those with a sedentary lifestyle or obesity are also vulnerable. Winter smog and cold weather can further strain the cardiovascular system, increasing the likelihood of heart-related emergencies. Misinterpreting symptoms as minor ailments like acidity or gas can delay life-saving treatment, leading to severe complications or fatalities.