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What effect does drinking coffee have when you have a cold?
Caffeine in coffee is difficult to dissolve in cold water, but easy to dissolve in hot water. Caffeine can stimulate cerebral cortex, eliminate drowsiness, increase feelings and thinking, and can be used as a cardiotonic to regulate heart function. It also has the functions of dilating renal blood vessels and diuresis. However, it is not only coffee that contains caffeine. Usually a cup of coffee contains 60-65 milligrams of caffeine. However, if you consume too much caffeine, you are prone to tinnitus and myocardial hyperfunction (the heart beats faster and the pulse frequency increases). And the pulse is uneven, so be sure to drink coffee in moderation.

Coffee is recognized as a healthy drink, but drinking coffee must be reasonable and scientific, which is beneficial to health, and it should be timely and moderate.

A drink after getting up in the morning is for refreshing, and a drink at work during the day can refresh you. Coffee can be a little stronger at this time. It is best to drink coffee after meals or in the evening. Coffee or tea has a refreshing effect, but it should not be used with meals and should be drunk after meals. Some friends like coffee very much, but they are afraid that they will get angry if they drink it often. We often see many people weak coffee. This way of drinking coffee is unhealthy. A cup of white water with coffee has two advantages: first, drink a mouthful of white water before drinking coffee to wash off the peculiar smell in your mouth, and then you will feel mellow. Second, because of the diuretic effect of coffee, drink more white water, increase urination and promote renal function. In this way, you can not only taste the delicious coffee, but also worry about getting angry. It's killing two birds with one stone.

Black coffee-the best health messenger

The most beneficial substance in coffee is caffeine. In various ways of drinking coffee, drinking pure black coffee can best retain beneficial ingredients and is most beneficial to health. Here are some of its functions:

Refreshing caffeine stimulates the central nervous system to refresh the mind and improve work efficiency;

Caffeine stimulates gastrointestinal secretion of gastric acid and prevents gastroptosis.

Diuretic and dehumidifying caffeine can increase urine volume and promote renal function.

Linoleic acid, which has the function of promoting blood circulation and removing blood stasis, contained in coffee can hemolyze and prevent thrombosis, enhance vasoconstriction and reduce the probability of stroke.

Caffeine can inhibit parasympathetic nerve and reduce the attack of asthma.

Caffeine for removing odor contains tannin, which has a strong adsorption capacity for taste. If your home has just been renovated, make a pot of coffee indoors or put it indoors with cooked coffee beans, and the odor will be removed quickly.

Coffee can lose weight and resist aging. Lightly roasted coffee contains more caffeine, which is beneficial to lose weight. Black coffee has antioxidant effect, which is helpful for anti-cancer and anti-aging.

Drinking coffee in moderation is good for human health. Usually, the human body can consume nearly 500 to 600 milligrams of caffeine every day, which is equivalent to about 5 cups of coffee. In this range, there will be no side effects. But the metabolism of pregnant women is a little slow, so drink less. Coffee is an indispensable healthy drink for us.

Coffee and health

When it comes to coffee, people think of caffeine, which is a mild stimulant in coffee. It can improve the sensitivity and attention of human body, accelerate the metabolism of human body, and improve the mental state and physical quality of human body. At present, caffeine has been found in about 60 kinds of plants, of which tea and coffee are the most well known.

What kind of people are not suitable for drinking coffee

Coffee contains caffeine, and whether it reacts to caffeine varies from person to person. For example, some people are allergic to pollen, while others are not suitable for eating seafood. And these two situations, for most people like you and me, will not have any impact. As for how much coffee to drink every day, in some coffee-consuming countries, people consume about 250-600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body. So you can drink 4- 10 cups of instant coffee every day.

What effect does drinking coffee have on health?

Your main concern is whether the caffeine contained in coffee has an impact on health. In fact, caffeine is a mild stimulant in coffee, which can improve human sensitivity and attention, accelerate human metabolism, and improve human mental state and physical quality. At present, caffeine has been found in about 60 kinds of plants, of which tea and coffee are the most well known. In some coffee-consuming countries, people consume about 250-600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body.

You can't drink too much coffee every day.

People often ask, how much coffee is excessive? In some coffee-consuming countries, people consume about 250 to 600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body. Because the caffeine content in a cup of coffee (150ml) is generally:

-Ground coffee: about 80-90 ml.

—— Instant coffee: about 60ml.

In some coffee-consuming countries, people consume about 250-600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body. The caffeine content of a cup of instant coffee (about 150 ml) is generally about 60 mg, so drinking 4- 10 cups of instant coffee every day will not be excessive.

The efficacy of coffee

Alcohol or tobacco can make people feel intoxicated and stimulated, and caffeine can also make people feel excited. Caffeine can stimulate the central nervous system or muscles, restore muscles or fatigue, improve work efficiency, have a sober effect, and make the brain more active and sensitive.

On the other hand, it can also improve heart function, dilate blood vessels, have good blood circulation, have a calm headache and feel comfortable. And asthma can inhibit the excitement of parasympathetic nerve by stimulating sympathetic nerve. Other coffee also helps digestion, especially when eating too much meat, which can promote digestion and prevent gastroptosis. Because caffeine can break down fat, westerners must want to drink coffee after eating energy-enhancing food. Caffeine can not eliminate garlic flavor, but also contains betel nut, so coffee is an indispensable drink after taste compensation cooking.

In addition, coffee also has a deodorizing effect. Residues brewed with ground coffee can be dried in containers and used as deodorizers in refrigerators or shoe boxes. Sprinkling on the ashtray can also eliminate the smell of tobacco. And coffee can also be used to hide the taste. For example, instant coffee can be turned into a sweet and delicious meat dish if it is melted with boiling water and its taste is stained with meat.

Coffee contains a lot of caffeine, will it affect your health? Maybe some people will have such concerns. However, the amount of two or three cups of coffee is no problem. On the contrary, drinking coffee in moderation is effective for the body. Understand coffee correctly, so that everyone can drink coffee happily and enjoy coffee time!

Coffee and the influence of people's mood

Recently, Professor A.P.Smith of the University of Bristol in the United Kingdom published his ten-year report, studying the influence of coffee on the brain, especially the influence of coffee on discrimination. Their discrimination and alertness were measured 30 minutes before and after drinking coffee. Smith found that after drinking a cup of coffee, they became more alert and more focused. Professor Smith said that coffee can really refresh you, especially when you don't get enough sleep. If you have a cold and have to concentrate on going to work or coping with exams during the day, drinking a cup of coffee will definitely promote your alertness and help you tide over the difficulties. Coffee will stay in the body for 2 to 5 hours, so coffee has a long-term refreshing effect. Further experiments show that the average person can absorb 300 mg (about three cups of brewed coffee) of caffeine every day, which will have the following effects on a person's alertness and mood. But when caffeine exceeds 400 mg (four cups), it will bring side effects, such as bad mood, irritability, aggression and trouble. If you only want to take polyphenols in coffee to resist oxidation, you only need to go to "fdecaf" coffee!

Studies have found that people who drink coffee are less likely to get Parkinson's disease. Scientists at the Veterans Management Medical Center in Honolulu, Hawaii, found that people who don't drink coffee are five times more likely to develop Parkinson's disease than those who drink more than five cups of coffee a day. Researchers have followed more than 8,000 men for 30 years, and their findings have been published in the Journal of the American Medical Association. Parkinson's disease (PD) is an senile disease with six kinds of pathological changes in the nervous system. Its typical symptoms include tremor, stiffness and decreased voluntary activities of limbs. It is not clear why researchers may reduce the risk of Parkinson's disease by drinking coffee. But they speculate that caffeine contained in coffee may play a role in preventing nerve cells that cause Parkinson's disease from being damaged. Scientists point out that their current results are preliminary and need further research to confirm. They stressed that it is too early to suggest drinking coffee as a treatment for Parkinson's disease.

Coffee and prevention of gallstones

Delicious coffee is a refreshing drink, and the latest research also found that every few cups of coffee can prevent gallstones. According to the latest issue of the Journal of the American Medical Association, researchers at Harvard University in the United States found that men who drink two or three cups of coffee are 40% less likely to have gallstones than men who don't drink coffee. If they drink more than four cups of coffee every day, the chance of gallstones will drop to 45%. However, decaffeinated coffee has no such effect. Only caffeinated coffee can stimulate gallbladder contraction and reduce cholesterol which is easy to form gallstones in bile. Other drinks, such as tea and cola, also contain caffeine. Because the caffeine content is lower than that of coffee, the same effect cannot be achieved.

Anti-oxidation and heart protection of coffee

In addition to refreshing, coffee also contains polyphenols, which not only has antioxidant effect, but also has cardiovascular protection function. Recently, the food chemistry seminar of the annual meeting of the American Chemical Society did have new scientific evidence to prove that coffee contains powerful antioxidants and has the function of protecting the heart and blood vessels. The study was conducted by Scranton University in Pennsylvania, USA. These polyphenols, sometimes called flavonoids, are powerful antioxidants that can resist oxidation and coagulate blood.

Coffee and Prevention of Radiation Damage

Radiation damage has become a prominent pollution and harm at present. Especially the radiation of household appliances: for example, people who operate the phone for a long time, microwave ovens and televisions at home. Especially for pregnant women, radiation has affected the health of the next generation. Reports in this regard are not uncommon. Indian scientists have found that coffee can protect laboratory mice from radiation damage and may have the same effect on humans. Researchers at the Baba Atomic Research Center in India found that 70% of the experimental mice injected with caffeine survived after 25 days after receiving high-dose radiation, which is usually fatal, while all the experimental mice that were not injected died. Kaye Bilgio, who led the study, said that this discovery may also apply to humans. He said: "Studies show that coffee may help prevent injuries."

Can coffee cause calcium loss?

In recent years, people in China have paid more and more attention to calcium loss and osteoporosis, and they are puzzled by coffee. As for the relationship between caffeine intake and osteoporosis, it is still under continuous study. At present, there is no direct evidence that caffeine can cause osteoporosis, but some studies have pointed out that caffeine can increase calcium excretion. Therefore, it is suggested that people who love coffee eat more high-calcium foods to supplement calcium, such as preparing cheese slices or cheesecakes with coffee, which can not only supplement calcium, but also make coffee more delicious.

Those people are not fit for coffee?

Patients with cerebral hemangioma are not suitable for drinking coffee, and patients with heart disease should drink coffee without or with low caffeine, because caffeine will accelerate the heart rate and cause cardiac hypoxia. In addition, patients with skin diseases and stomach diseases should drink less coffee as far as possible to avoid aggravating their illness due to excessive drinking. Diabetic patients should also avoid drinking coffee with too much polysaccharide, so as not to aggravate the condition. The US Food and Drug Administration (Fda) issued a statement advising pregnant or potential pregnant women to reduce caffeine intake. Because pregnant women metabolize caffeine about twice as fast as non-pregnant people in the second and third trimester, and caffeine will also enter the fetus through the placenta and flow into the baby through breastfeeding. In addition, many studies have failed to prove that moderate caffeine will have adverse effects on the fetus, and there is no medical report prohibiting pregnant women from drinking coffee. Pregnant women and breast-feeding women are still advised to be more cautious about caffeine intake. In short, if you find yourself unwell after drinking coffee, you should stop drinking coffee for a while, and then start from a small amount and change your drinking style.

Coffee is a beauty killer?

So far, no research results show that caffeine in coffee is harmful to beauty.

On the contrary, moderate caffeine can accelerate metabolism, promote digestion, improve constipation and improve rough skin.