عنوان مقاله [English]
Introduction:Caffeine is a chemical and edible substance, which is found in some foods, such as coffee, cocoa, cola, tea, chocolate and some drinks. Caffeine is the most widely used drug among people and almost 90 percent of people are using it on a daily basis. Given that taking food and drinks containing caffeine including chocolate, tea and coffee is very high in Iran as well as its effects on cardiovascular disease is still not fully understood; hence, the purpose of this research was to study the effects of caffeine on cardiovascular diseases and to report the results of research conducted in this regard.
Research Methodology: In this study, library collection, searching the scientific literature and papers were used. The views of relevant experts were also examined.
Results:The results showed that using tea has no harmful effects on the cardiovascular system. According to obtained results chocolate consumption will reduce both systolic and diastolic blood pressure. In general, drinking coffee causes increased blood pressure, irregular heartbeat, increased blood cholesterol, increased levels of homocysteine and increased risk of heart attacks. Several studies indicated fetal cardiac arrhythmias caused by excessive consumption of caffeine in pregnant women.
Conclusions: According to the results, green and black tea has no harmful effects on cardiovascular diseases, but in some cases positive effects have also been reported. Consumption of chocolate, cocoa and coffee have harmful effects on the cardiovascular system. Due to the effects of caffeine on pregnant women, consumption of coffee and caffeine should be reduced during pregnancy.