Holiday heart syndrome” refers to a syndrome characterized by clinical arrhythmias after excessive alcohol consumption during the holidays. This syndrome is not related to a long history of heart disease, but is closely related to alcohol consumption. Excessive consumption of alcohol, whether wine, beer or spirits, can cause folding to occur due to the ability of alcohol and its metabolites to delay myocardial conduction time or to stimulate the release of norepinephrine from the myocardium, thereby altering the myocardial nonresponse period. These factors can make excessive drinkers susceptible to tachyarrhythmias, with a variety of abnormal heartbeat rhythms such as premature arrhythmias, paroxysmal tachycardia, and even atrial flutter or atrial fibrillation. This syndrome is not related to a long history of heart disease, but is closely related to alcohol consumption. Excessive consumption of alcohol, whether wine, beer or spirits, can cause folding to occur due to the ability of alcohol and its metabolites to delay myocardial conduction time or to stimulate the release of norepinephrine from the myocardium, thereby altering myocardial expiration. These factors can make excessive drinkers susceptible to tachyarrhythmias, premature arrhythmias, tachycardia, and even abnormal heart rhythms such as atrial flutter or atrial fibrillation.