Is coffee good or bad for the heart? Coffee has no effect on cardiovascular disease!

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It has always been debated whether drinking coffee is good or bad for the heart. On June 3, 2019, the contemporary medical news website (www.medicalnewstoday.com) published "is coffee harmful to the heart?" "report, introducing the latest research results. The report points out that previous studies on coffee consumption have shown conflicting results, but a new study by researchers at Queen Mary University (Queen Mary University of London) in London shows that even people who drink a lot of coffee every day do not develop stiff arteries, meaning drinking coffee does not increase the risk of cardiovascular disease.

Drinking coffee has no effect on cardiovascular system.

For years, scientists have been trying to answer whether coffee has any effects on heart health and the vascular system, the article said. Some studies warn that drinking coffee increases the risk of cardiovascular disease, but others believe that coffee can maintain heart health and vascular function. For example, some studies have shown that regular drinking of large amounts of coffee can lead to aortic stiffness, that is, the aorta becomes increasingly inflexible, leading to the risk of cardiovascular disease. Other evidence suggests that drinking more than three cups of coffee a day can prevent atherosclerosis, the accumulation of plaques in the arteries that hinder the normal flow of blood.

Professor Steffen Petersen, lead author of the new study, said that in the new study, the team analyzed data from 8412 participants recruited by UK Biobank. Participants were assessed by cardiovascular magnetic resonance imaging and other experts to determine their cardiovascular function.

In the meantime, the researchers divided participants into three groups according to their coffee consumption habits and quantity: those who drank one or less cups of coffee a day (mild group), those who drank one to three cups of coffee a day (moderate group), and those who drank more than three cups of coffee a day (severe group). In the final analysis, the researchers excluded people who drank more than 25 cups of coffee a day and those who initially had cardiovascular disease.

When comparing measurements of arterial stiffness among the three groups, the researchers found no difference between moderate and heavy coffee drinkers and light coffee drinkers. The researchers say these results suggest that even drinking large amounts of coffee is unlikely to have a negative effect on arteries, so it may not have a negative effect on heart health and vascular function. Study co-author Kenneth Fung explained that although there is no evidence of causality, studies have shown that coffee is not as harmful to arteries as previous studies have suggested.

The Heart Association recommends less milk and sugar

The American Heart Association (AHA) published an article entitled "is Coffee good for you?" ". The article points out that coffee increases the metabolic rate and reduces the risk of some diseases. Moreover, evidence of its health benefits will soon "pile up". Studies have shown that caffeine can improve mood, help the brain work better, and improve performance during exercise. Coffee drinking habits are associated with a lower risk of type 2 diabetes and Parkinson's disease.

In addition, caffeine was associated with a lower risk of Alzheimer's in one study. Coffee is an excellent source of antioxidants that can help protect cells from damage. Increased coffee intake is associated with a lower risk of overall mortality, including death from heart disease, neurological diseases and suicide. Habitual coffee drinking is associated with a lower risk of coronary heart disease in women.

If too much milk and sugar are added to the coffee, the health benefits may not be available, the article said. Sugar has bad effects, says Penny Kris-Etherton, a professor of nutrition at Penn State University. Even if you add sugar and do not exceed your calorie needs, it will still eliminate some benefits, because sugar is a negative food ingredient.

Federal dietary guidelines say three to five cups of coffee a day can be part of a healthy diet, but this only refers to regular black coffee. "if you add sugar, you will gain calories and weight gain will have a negative impact on the risk of heart disease," she said. "and overeating caffeine can also be dangerous. Because the caffeine content is too high, can destroy the normal sleep habit.

Moreover, some people are slow metabolites of caffeine. It's a genetic predisposition. Some people who drink an extra cup of coffee may feel nervous, palpitations and insomnia. Caffeine can also be addictive, and drinking less can cause withdrawal symptoms, especially severe headaches. "those migraines are very bad. "

She said that children should not drink coffee. The American Academy of Pediatrics (AAP) recommends that children avoid caffeinated drinks. She warns that brewing methods can affect the risk of cardiovascular disease. For example, paper filters remove a compound called cafestol, which increases low-density cholesterol (LDL), so unfiltered coffee may pose a higher health risk.

Long-term studies show positive effects

Time magazine published an article entitled "another reason why coffee feels good" on November 13, 2017. The article argues that the news about coffee is "getting better and better". A new analysis of one of the largest and longest studies in the United States has found that coffee drinking is associated with a reduced risk of heart failure, stroke and coronary heart disease.

Researchers at the University of Colorado School of Medicine analyzed data from the Framingham Heart study, which documented the dietary patterns and cardiovascular health of more than 15, 000 people since the 1940s. The researchers used a method called machine learning, which focuses on artificial intelligence to find patterns in big data, similar to e-commerce sites that predict customers' spending habits based on their shopping history.

One factor that stood out after analysis was that coffee was associated with a reduced risk of heart failure, stroke and coronary heart disease, the researchers found. Compared with non-coffee drinkers, coffee drinkers reduced their risk by 7%, 8% and 5% for every 8 ounce cups a day. However, 97% of coffee drinkers consume one to six cups of coffee a day, so researchers are not sure whether they will continue to benefit from higher consumption levels.

These studies can only determine the relationship between the two, but not cause and effect. However, based on these findings, experts suspect that coffee may have a protective effect on diseases such as heart failure and stroke. Previous studies have speculated that the amount of caffeine in coffee and its antioxidant and anti-inflammatory properties may be responsible for its health benefits.

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