Will drinking coffee affect the cardiovascular system? How many cups can I drink a day? A famous doctor in the cardiac department suggests that you will know after drinking it.

Perhaps the effect of coffee varies from person to person. Ask your blood pressure the most. After drinking coffee, you can know how much impact the coffee has on your blood pressure. How much does coffee know? As for coffee, the complexity is not m...


Perhaps the effect of coffee varies from person to person. Ask your blood pressure the most. After drinking coffee, you can know how much impact the coffee has on your blood pressure.

How much does coffee know?

As for coffee, the complexity is not much different, so let us first take a test: "Which type is more dense than American coffee?"

This is a trap question. What is the most important key? If the definition of "金" is which type of coffee has more caffeine and can make people more awake? The answer will be American coffee!

Although American coffee has a relatively low caffeine content per ounce, it has an average of about 100 mg of caffeine per cup due to its large total amount. In contrast, the capacity of standardized coffee is only 44 milliliters (one 5 ounces), so each cup contains only 77 milligrams of caffeine.

Let's get another question: "From the total consumption of coffee in the world, 36% is heavy roast, 60% is medium roast, and 9% light roast (some consumers will mix and match, so it is more than 100%). Which roasting method can best inhibit gastric acid?"

The answer is heavy roast, because the molecule NMP (N-methylpyridinium) that blocks gastric acid will not appear after it is roasted.

If sugar is not counted, alcohol, nicotine and caffeine are the three major contributors in the world, and caffeine ranks first. Caffeine is found in coffee, tea, chocolate, cole and other foods (see Table 13 below), but the impact of caffeine-containing foods on human body has not yet been clearly discussed.

On average, each person consumes 70 mg of caffeine per day, and in some countries (such as the UK and Sweden), each person can consume 400 mg per day. The structure of caffeine is similar to that of the asthma drug eophylline, and partly similar to adenosine. It is an antagonist of adenosine receptors A1 and A2A. Its effects can stimulate the middle nerve, acutely increase blood pressure, increase the rate of neo-chenectron, and diuresis. Caffeine is reinforcing by the liver, and acts on the hepatic correlates P450 CYP 1A2, which interacts with many drugs.

Caffeine content content comparison

{twenty one} {twenty two}

Caffeine reaches the blood in a few minutes, and reaches the peak in one hour, which will last for more than six hours. It takes longer for older people to remove it, or even more than twenty-four hours. When caffeine is taken in one day, it can be fatal when it weighs 100 to 200 mg per kilogram; when it exceeds 15 to 30 mg per kilogram, it can be toxic and tolerant after long-term use.

The caffeine content varies according to the type of food, but the same food may not necessarily have the same caffeine content every day. A study used a sample to measure the caffeine content in the same cafe every day. It turned out that the caffeine content of the same product (such as double cappuccino) was different every day, and the change was more than twice, falling between 130 and 282 milligrams. In other words, if we drink coffee made from 60 coffee beans a day like Bethofen, the caffeine content would also be different every day.

Seventy percent of American antioxidants come from coffee. In addition to caffeine, coffee also has other health-affecting ingredients. For example, Cafestol and Kahweol can increase LDL, but will be filtered out by filters. Therefore, whether the coffee you drink has been filtered has different effects on health.

Doctor Hong reminds

Caffeine reaches the blood in a few minutes, and reaches the peak in one hour, which will last for more than six hours. It takes longer for older people to remove it, or even more than twenty-four hours. Long-term excessive intake can be toxic and even fatal.

Scandinavian Boiled Coee, French Press Coee, and Turkish coffee, each cup contains six to twelve milligrams of coffee oleyl alcohol and coffee white alcohol, which will increase LDL; the content of coffee oleyl alcohol and white alcohol in filtered coffee, filtered coffee and instant coffee is only 2 to 0.6 milligrams of coffee LDL, which has a much smaller impact on LDL; although the filtered coffee is not filtered with filtered paper, the content of coffee oleyl alcohol and coffee white alcohol per cup is only 4 milligrams of coffee oleyl alcohol and coffee white alcohol per cup.

When we study coffee articles, we must understand the popular coffee brewing and drinking methods in order to make a correct judgment on this study.

The impact of coffee on health

When Voltaire, a thinker, philosopher and literary scholar in the Mongolian era, was 80 years old, someone told him that coffee was a chronic toxic drug, and drinking coffee was equivalent to chronic self-kill.

Voltai answered this way: "You said it's right. I think the poison of coffee must be chronic. Otherwise, why would I not die after drinking it for decades?"

Coffee was first taxed in Sweden in the 18th century, and then banned, but it still could not stop people from loving coffee. He said that the king of Gustav at that time was the king of Gustav III) wanted to use a more scientific method to convince the people to quit coffee. He sentenced a pair of identical twins sentenced to life imprisonment, allowing one of them to drink three pots of coffee a day and the other to drink the same amount of tea every day to see if the coffee would be as bad as expected.

Unexpectedly, after a period of time, both doctors responsible for supervision died of illness. Until the king was secretly killed and those who were responsible for the experiment died in 1792, the experiment was not over.. The death row prisoner who drank tea later lived to his 83rd year of age, and the death row prisoner who drank coffee lived longer; this study was later called "Sweden's earliest medical experiment."

Back to modern times, at the end of May 2022, the Annals of Internal Medicine published a study that boosted coffee caregivers, which mentioned that drinking appropriate amounts of coffee (one and a half to three and a half cups) every day in the UK, even if you add a teaspoon of sugar, can still reduce the mortality rate by 30%.

This is a study of the living habits of 171,116 people in the British Biosciences Bank. These people aged 37 to 73 had no cancer and no cardiovascular disease at the beginning of their experiments. After seven years of investigation, they obtained conclusions that could reduce the mortality rate. They also said that people who drink three cups a day have the best results.

The mortality rate is reduced by 30%? It's so amazing. If any new drug can reduce the mortality rate by 10 to 20%, we think it is a magical drug. Now coffee can actually reduce the damage by 30% compared to most drugs. So should health insurance pay three cups of coffee a day? After all, it is more magical than medicine! But wait a moment, don’t you think all British people drink tea? Are these people who choose to drink coffee different types of people? Or do they have different life habits?

This article is an observational study that can provide ideas and suggestions, but cannot provide our answers. The ideal study should be to ask the Swedish king to find 3,000 death row prisoners and change them to deadline imprisonment, so that these people can be divided into three groups, one to drink coffee, one to drink tea, and one to drink white water…… but this experiment should not be possible through today's medical ethics review!

coffee research is very unconfident that the impact on cardiovascular disease seems to be the J-shaped curve, that is, too high or too low is not good for humans, and the appropriate amount is the best. Some studies have mentioned that drinking more than four to five cups of coffee a day will have a bad blood vessel in the heart, and compared with that in the United States, coffee has a greater impact on cardiovascular disease in Europe, but some studies do not support this statement. Perhaps as mentioned earlier, the results are different when drinking methods are different; the impact on heart failure is also a J-shaped curve, and not drinking at all or overdose is not good. Drinking two to four cups a day will reduce the incidence of heart failure, and more than five cups will increase the risk.

Study shows that drinking two to four cups of coffee a day will increase slightly, but drinking more cups a day will not have any impact on the blood pressure. My suggestion is that you don’t have to care about the results of the research or the effects on others. Maybe the effect of coffee varies from person to person. Ask the blood pressure the most. After drinking the coffee, you can know how much impact the coffee has on your own blood pressure.

As for the effects of coffee on body weight, diabetes, Alzheimer's disease, bone relieving, and kidney disease, you can write a book, which is not the goal we are exploring here.

The impact of coffee and tea on the body is very complicated, and many of the effects are still to be proved and cleared. But no matter what, the current evidence seems to be at least not bad, so let us enjoy the time with a happy mood and enjoy the hot coffee or tea, and enjoy life well!

(This article is excerpted from the publication of "Hong Huifeng Medical Care Room" by Tianxia Culture)



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