With the accelerated pace of modern life, irregular lifestyle has a deep impact on our health. Overexertion, staying up late, drinking alcohol, smoking, etc. are all potential risk factors for arrhythmias. In today’s issue, we will talk about the relationship between alcohol consumption and arrhythmias. There are many types of alcohol, whether it is white wine, yellow wine, red wine, or beer, the main component is alcohol, or ethanol. As the saying goes, “a small amount of alcohol is good for the soul,” and a small amount of occasional alcohol consumption can play a role in the pleasure of the body and mind, enhance relationships, and have no adverse effects on health. However, as a chemical, excessive intake of alcohol can cause harm to the body, with the digestive system bearing the brunt, followed by the liver, and further affecting all organs of the body after alcohol is absorbed, and for the heart, one of the adverse effects of alcohol is an increase in the incidence of arrhythmias. Let’s take the most common of the arrhythmias, atrial fibrillation. Studies have shown that heavy male drinkers who regularly consume alcohol, especially at least 2 drinks per day, are 51% more likely to develop atrial fibrillation than non-drinkers or occasional drinkers. Women are more sensitive to excessive alcohol intake, and those who drink more than one drink per day are considered heavy drinkers and have a 60 percent increased risk of arrhythmia. So why is excessive alcohol intake so harmful? The reason is that alcohol can directly damage cardiac muscle cells and affect the energy metabolism of cardiac muscle cells, resulting in weakened myocardial function, increased heart burden and impaired coronary artery blood supply, which can lead to arrhythmias. At the same time, excessive alcohol excites the cerebral cortex, causing the brain to lose its balance between excitation and inhibition, and the imbalance of the nervous system can lead to cardiac rhythm regulation disorders, which can lead to tachycardia, bradycardia, premature beats, atrioventricular block and other arrhythmias. This shows that the potential harm of excessive alcohol consumption should not be underestimated. For the sake of our healthy heartbeat, we call for healthy drinking and never drink too much.