Drinking coffee for health? Research: "This group" drinks 2 cups a day, which may double the risk of cardiovascular death!
Could coffee improve concentration and reduce chronic disease? Drinking 2 drinks in this group may double the mortality rate
Coffee is the most popular beverage in modern times, and office workers holding a cup of coffee can be seen everywhere. Coffee not only has the effect of boosting energy and helping concentration, but some studies have also shown that it can reduce cancer, diabetes and other benefits.
However, coffee contains caffeine that stimulates the central nervous system, so certain groups of people need to pay attention to their intake. A recent study published in the “Journal of the American Heart Association” pointed out that people with “severe hypertension” (160/100mmHg) who drink more than two cups of coffee a day will double their risk of cardiovascular death.
A review of research shows that drinking a cup of coffee a day can reduce the risk of death after a heart attack. Other independent studies have also pointed out that coffee can reduce the incidence of diabetes and various chronic diseases, cancer, and can also help control appetite and reduce the risk of depression. Concentration while working. However, there is also data showing that excessive coffee consumption can increase blood pressure, anxiety, heart palpitations, and difficulty sleeping.
18,000 people in Japan study “severe hypertension”: Drinking coffee may increase cardiovascular death
In order to analyze the differential benefits of coffee and green tea, the two most popular “health drinks”, in groups with different blood pressure values, the research team collected data from 6,570 men and more than 12,000 women in Japan, and divided the participants’ blood pressure values into Five major categories: normal blood pressure (less than 130/85), prehypertension (130-139/85-89), primary hypertension (140-159/90-99), and secondary hypertension (160-179/100- 109), stage III hypertension (180/100). A prospective study using a dietary questionnaire. During a nearly 19-year investigation, it was found that people with blood pressure higher than 160/100mmHg who drank more than two cups of coffee a day had twice the risk of cardiovascular death as those who did not drink coffee.
However, drinking just one cup of coffee a day did not change the risk of death from cardiovascular disease in people of all blood pressure groups. In addition, drinking green tea was not associated with an increased risk of cardiovascular disease or death, regardless of blood pressure range. The research team believes that this analysis supports the view that people with severe hypertension should avoid excessive coffee consumption. The harmful effects of caffeine in this group outweigh the protective effect provided by coffee and may also increase the risk of death.
In contrast, although green tea also contains caffeine, it does not appear to increase mortality in patients with severe hypertension. The research team believes that the difference between green tea and coffee is related to “polyphenols”. Polyphenols have antioxidant, anti-inflammatory and other micronutrients. The amount of polyphenols in green tea offsets the impact of caffeine on severe hypertension. However, the study’s evidence still has limitations, including that the coffee intake data are based on subjective questionnaires, and it cannot prove that cardiovascular death in severe hypertension is directly related to caffeine.
Every 20 mmHg increase in systolic blood pressure doubles the risk of death from heart disease and stroke
Hypertension is the most common chronic disease among modern people. It is called the “silent killer” because its symptoms are not obvious. The American Heart Association points out that high blood pressure poses a more obvious health threat to people over the age of 50 and is a major risk factor for arteriosclerosis, plaque accumulation, coronary heart disease and cardiovascular events. Research shows that for adults aged 40 to 89, for every 20mmHg increase in systolic blood pressure or 10mmHg increase in diastolic blood pressure, the risk of death from heart disease or stroke doubles.
In addition to receiving proper treatment for high blood pressure, special attention should be paid to sodium intake in daily diet. The main principles of the DASH diet for improving high blood pressure are to limit sodium (salt), red meat, sugary drinks and artificially added sugars in food. People with abnormal blood pressure are encouraged to eat more fruits and vegetables, low-fat dairy products, fish, nuts and whole grains, and to reduce their coffee intake.
In addition, saturated fat can easily cause arteriosclerosis and blood fat accumulation, which can have adverse effects on blood pressure and blood lipids. People with high blood pressure should avoid saturated fat and trans fat. When you need to adjust your diet, it is recommended to consult a cardiologist or nutritionist. Do not listen to rumors and take unidentified folk prescriptions to avoid having a greater impact on blood pressure.
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