Hypertension & Irregular Heart Beat
One hypothesis postulates that drinking alcohol in moderate quantity helps to dilate the blood vessels and reduce the blood pressure temporarily. But, anything in excess can be dangerous. When alcohol is consumed in large quantities on a regular basis, you may end up having hypertension (high blood pressure). Alcohol contains unwanted calories that can add to unhealthy weight gain, a risk factor for rise in blood pressure.
Irregular heartbeats can occur due to excess alcohol consumption. Chronic alcohol drinking may lead to enlargement of one chamber of heart, mostly the atrium, because of which atrial fibrillations can occur.