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Coffee is a drink consumed from ancestral times and is now one of the world's favorite beverages. Drinking coffee causes an old debate about hypertension. Several studies have shown that at some frequencies coffee drinking is clearly a protective factor of hypertension. Coffee can affect blood pressure due to the content of polyphenols, potassium and caffeine. Polyphenols and caffeine reduce blood pressure, while caffeine has the power to increase blood pressure. The smallest coffee effect in blood pressure will have an impact on public health, because coffee is consumed by the community.

The coffee taken in the body is distributed throughout the body by blood from the digestive tract in about 5-15 minutes. Absorption of caffeine in the gastrointestinal tract reaches 99% level and reaches the peak of blood flow in 5 minutes. Caffeine is very effective in body work that affects many people. Caffeine per cup of coffee is 1 mg. Acute (high blood pressure occurs due to biological mechanisms of caffeine antagonists bind to adenosine receptors and activate the sympathetic nervous system by increasing plasma concentrations & cathecolamines and adrenal glands as a simulated increase in the production of corsoles.) The effect of al on masochonstriction and increased total peripheral resistance causes high blood pressure.