The cold weather poses significant risks to individuals with pre-existing heart conditions, diabetes, or high blood pressure. Older adults and those with unhealthy lifestyles are particularly vulnerable. Women may experience atypical symptoms, such as fatigue or upper back pain, which can delay diagnosis. Younger adults are also at risk due to stress, smoking, and poor diets. Delayed medical attention during a heart attack can lead to irreversible damage to the heart muscle, increasing the likelihood of complications such as heart failure or arrhythmias.