Alcohol Causes Heart Attack. In the united states, a standard drink is approximately 14 grams of pure alcohol, which equates to any one of these: Well, alcohol causes chest pain because it increases blood pressure, which causes an irregular heartbeat (atrial fibrillation), which then reduces blood flow to the heart and causes chest pain (angina).

The blood flow to the heart can be blocked due to a gradual build up of plaque, fat and cholesterol that cause a narrowing of the coronary arteries.alcohol consumption can raise the levels of fat in the blood. Several lines of evidence suggest that heavy drinking increases the risk of sudden cardiac death with fatal arrhythmia as the most likely mechanism. The associations between drinking and cv diseases such as hypertension, coronary heart disease, stroke, peripheral arterial disease, and cardiomyopathy have been studied extensively and are outlined in this review.