Alcohol can excite the sinus node, leading to an increase in the frequency of sinus node discharge, resulting in an increase in heart rate. 2. Alcohol is absorbed into the bloodstream in the intestinal tract, stimulating the expansion of vascular smooth muscle, leading to a decrease in effective blood volume and a decrease in glomerular filtration rate, which activates the renin-angiotensin-aldosterone system. Alcohol can act directly on the central nervous system of the heartbeat center medulla oblongata, leading to sympathetic excitation, prompting a faster heart rate. 4, after drinking alcohol can accelerate the body’s metabolism, the body’s material metabolism is accelerated, the blood flow rate is also accelerated, prompting a higher heart rate. Prolonged alcohol abuse can lead to metabolic disorders in the body, damage to blood vessels and nerves, and promote the occurrence of cardiovascular events.