Coffee – one of the most popular drinks in the world. Drinking coffee can slightly constrict blood vessels, increase the production of adrenaline, norepinephrine, renin and increase myocardial sensitivity to calcium, which can affect the heart rhythm. Many scientists associate these facts with the risk of developing heart rhythm disturbances.
Find out in the article on estet-portal.com how harmful frequent coffee intake is and how coffee consumption and the pathology of the cardiovascular system are connected.
- Coffee consumption and risk factors for atrial fibrillation
- Coffee Frequency Study
- Results of the study of the frequency of coffee consumption and CVD
Coffee consumption and risk factors for atrial fibrillation
Atrial fibrillation (AF) is one of the most common types of arrhythmias, and its frequency has increased significantly over the past few years. According to the Centers for Disease Control and Prevention = 2% of people aged 65 years and 9% of people over 65 years of age live with AF and more than 750,000 hospitalizations and 130,000 deaths are associated with the consequences of this disease annually in USA.
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The incidence of AF and associated mortality remain high despite advances in treatment for this condition. Many risk factors have been identified in the development of AF, including high blood pressure, diabetes mellitus, heart failure, obesity, hyperthyroidism and coronary heart disease. However, only a few studies have examined the role of dietary habits in the development of AF. Coffee is one of the staple drinks in the US, and its consumption has grown significantly in recent years.
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Some large studies have evaluated the association between coffee consumption and the risk of developing AF, with conflicting results. 
The results of the Northern California Comprehensive Health Care Study
reported a lower rate of AF-related hospitalizations among people who drink about 4 cups of coffee a day. In addition, the Danish Diet Cancer and Health Study also found a lower risk of developing AF among people who consumed 6 to 7 cups of coffee per day.
Coffee Frequency Study
Contrary to these results, a 25-year study by Swedish scientists that included 7495 people found a 24% increased risk of developing AF in people who drank 1 to 4 cups of coffee per day compared to participants who did not drink coffee. The Women's Health Study also showed a 36% higher risk of developing AF in women with 2 to 3 cups of caffeinated coffee per day. Given the widespread consumption of coffee around the world and the controversial relationship between coffee and the development of AF, American scientists sought to investigate whether coffee consumption increases the risk of developing AF.
was assessed by annual questionnaire and confirmed by review of medical records. Each participant provided information on age, body weight, height, smoking status (never smoker, quit smoking, smoker), exercise (not exercising, 2 glasses a day), valvular heart disease, and family history of myocardial infarction. The scientists also received information on comorbidities, including diabetes mellitus, hypertension, hyperlipidemia, and heart failure at baseline and during follow-up.
Clinical studies on the effectiveness of
intermittent fasting Results of the study of the frequency of coffee consumption and cardiovascular diseases 18,960 participants were followed up over 9 years, with a mean age of 66.1 years. In just 9 years of follow-up, 2098 new cases of AF were registered. The primary analysis found low rates of AF only among participants who reported drinking 1 to 3 cups of coffee per day. In a secondary analysis, researchers did not find a significant association between caffeine intake with food and the risk of developing AF.
Moderate coffee consumption every day prevents the development of heart rhythm disturbancesIn a prospective, long-term cohort study, researchers found a low incidence of AF among men who drank 1 to 3 cups of coffee per day. Coffee contains caffeine, diterpenes, and high amounts of antioxidants, including polyphenols, cafestol, trigonelin, chlorogenic acid, and quinine, which may reduce the risk of cardiovascular events through an anti-inflammatory effect. Secret of longevity: control of thyroid hormones
Therefore, only moderate coffee consumption has beneficial properties for the body,
which is especially important for patients with cardiovascular diseases.
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