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For those prone to cardiac issues, winter can be a tough time. Cases of heart diseases notably shoot up besides influx of viruses and respiratory illnesses. Studies suggest cardiovascular events such as heart attack, arrhythmia and heart failure witness a significant rise during the cold season.
Several factors are responsible for the rise of risk levels. In addition to delayed diagnosis, seasonal changes play a huge part in increasing the potential of a cardiac arrest. The sudden drop in temperatures indicates more caution around and imperative care must be exercised for ailments.
Low temperatures tend to trigger the sympathetic nervous system, resulting in constriction of blood vessels. This, in turn, increases heart rate, blood pressure and cholesterol levels. Those individuals who