Blood pressure can rise after drinking alcohol. For people with hypertension, blood pressure can become more unstable or even higher after drinking alcohol. Alcohol stimulates the heart to beat faster, increases the volume of blood ejected from the heart, increases the volume of circulating blood, fills the blood vessels more, thus increasing the pressure on the walls of the blood vessels, and may cause blood vessel spasms, all of which can lead to higher blood pressure. Studies have shown that even for young people aged 20-24, heavy drinkers have a 2-4 mmHg increase in systolic blood pressure compared to those who drink little or no alcohol, with an increased risk of future hypertension. Chronic heavy drinking can increase blood pressure at night, causing the rhythm of blood pressure fluctuations with the day and night to disappear, which in turn accelerates damage to important target organs such as the heart, brain and kidneys. In some people, blood pressure is measured just after drinking and it decreases, but then bounces back. A small amount of alcohol consumed over a long period of time causes a mild increase in blood pressure; excessive alcohol consumption results in a significant increase in blood pressure; and for long-term drinkers, the increase in blood pressure increases with the amount of alcohol consumed. The amount of alcohol consumed is clearly correlated with higher blood pressure; drink more and your blood pressure rises higher, so drinking must be moderate, especially for people with high blood pressure, and drinking is not recommended.