A recent study indicates that falling temperatures significantly raise the risk of cardiac arrests, with each degree Celsius drop correlating to a 1.4% increase in incidents. Conducted by researchers from Semmelweis University and other institutions, the study analyzed over 114,000 cases and found that winter months see nearly 18% more cardiac arrests than summer. The findings suggest that weather data could help predict cardiac arrest spikes, aiding emergency services in preparedness and potentially improving survival rates.