A Answers (2)
Drinking alcohol can cause the heart rate to speed up. In this video, Dr. Oz explains what may be causing a racing heartbeat after drinking.
Alcohol is a diuretic. As such, it causes people to lose intravascular volume. In response to this drop in volume, the heart increases its flow by first increasing the force of contraction with each heartbeat, then later by increasing the heart rate to make sure blood pressure is maintained.
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