Cold months bring shorter days, increased isolation, and higher stress levels for many people. Seasonal stress raises cortisol and affects sleep, mood, and heart function. Research shows heart attack rates and arrhythmia events can rise in winter, partly due to stress and physiological responses to cold. ECG testing during routine checkups helps track subtle rhythm changes that may oc... https://sunfox.in/blogs/the-link-between-stress-and-heart-problems/