For coffee lovers, it's not complete if it did not start the day without a glass of hot coffee in the morning. But behind the pleasures, many people assume that the caffeine content of coffee can trigger heart health problems.
Is it true that coffee consumption can be harmful to the heart? Please note, not all copies have the same effect. In fact, some studies have not been fully able to prove the threat.
Some research on coffee is decorated with various contradictions in the results. In addition to the methodology and the size of the study, some differences in the way the presentation can also affect the coffee.
Unfiltered coffee contains chemicals called diterpenes kahweol and cafestol like, associated with an increase in bad cholesterol or LDL, which eventually lead to an increased risk of heart disease. Some studies suggest that drinking boiled coffee without filtter, can raise cholesterol as much as 10 percent. Experts believe that chemicals in coffee can be removed with filter paper.
The most well-known chemicals in coffee is caffeine. On average, one cup of brewed coffee contains about 100 mg or caffeine. While decaffeinated coffee or decaf coffee contains only a few milligrams of caffeine alone.
Assessment of Research
Common perception that coffee drinking can affect heart rate or rhythm. This assumption is not entirely true. A Canadian study published in the Annals of Internal Medicine in January 1991 has reviewed the five previous studies of participants with abnormal heart rhythm problem. They found that drinking five cups of coffee a day did not exacerbate cardiac rhythm.
Interestingly, a large-scale study involving about 130,000 people were members of the insurers 'Kaiser Pemanente' showed that participants who drank three cups of coffee a day, 20 percent are less likely to be hospitalized due to abnormal heart rhythms than those who drank no coffee.
Meanwhile, research at Harvard involving 45 000 healthy men, joined in the Health Professionals Foolow-Up Study, published in the New England Journal of Medicine in 1990, found that coffee drinking has no effect on the risk of heart attack or stroke.
Whereas a more recent findings in Japan (81 000 men and women), published in the Journal of Epidemiology and Community Health showed that drinking one or two cups of coffee per day was associated with reduced risk of death from heart disease to 23 percent.
Another study in 2008 in Spain, published in the Annals of Internal Medicine, involved 129 000 men and women over two decades discovered that women who drank four to five cups per day had 34 percent lower risk of dying from heart disease, while men who consumed more than five cups a day, 44 percent had a lower risk of dying from heart disease.
Should drink coffee?
Before you begin to recommend coffee as a drink to your health, you need first to answer this question: Can coffee harmful to health?
Consumption of coffee on a regular basis in statistics and research have not been able to produce conclusive evidence whether the benefits of drinking coffee has a direct effect or not.
There are over 1,000 chemicals contained in coffee, many of which have been tested and shown to have cancer-causing effects in animal studies when given in high doses.
One of acrylamide - a chemical carcinogen - that abortion is higher in brewed coffee instead of instant coffee. Acrylamide also causes nerve damage in people who have very high levels of stress in the workplace.
Caffeinated coffee may not be suitable for some people, especially those who are elderly, who are unable to metabolize caffeine effectively and do not tolerate coffee well. In some conditions, it also may aggravate pre-existing conditions such as heartburn, migraines, insomnia and abnormal heart rhythms.
Basically, drinking coffee is not harmful as long as it is consumed in the right amount and not excessive. There are better ways to reduce heart disease and stroke, such as stopping smoking, reducing cholesterol diet and exercise.
Source : asiaone