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 on the influence of coffee on brain nerves, 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 as little coffee 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.
Interviewee: ~ amigo ~ ~- senior manager level 6 12-22 19:03
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The evaluation has been closed, and there are currently 1 comments.
okay
100% (1) is not good
0% (0)
Other answers *** 4
The advantage is refreshing, but the disadvantage is bad for your health. Not really.
Respondent: qwertv 98- magic apprentice level 1 12-22 18:46.
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The advantage is refreshing, but the disadvantage is that drinking too much will make you addicted, and the color of coffee is dark. If you have wounds (including acne wounds), it is difficult to remove the wound marks after healing.
Respondent: How? -Manager level 4 12-22 18:50.
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The advantage is refreshing!
The disadvantage is that peeling is not good and it is easy to grow black spots.
Don't drink too much, the so-called delicious food is rare.
Respondent: purple butterfly-probationary period level 112-2219: 01.
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Coffee may keep you awake at night, or it may raise your blood pressure. However, Professor Martin, director of the coffee research institute of Vanderbilt University in the United States, recently said that coffee contains hundreds of healthy ingredients, which can resist liver injury, various cancers, asthma, heart disease and paralysis.
He pointed out that it is beneficial to drink 2-4 cups of coffee every day. People who don't drink coffee are more likely to suffer from these diseases than those who drink coffee. Studies in recent 20 years have confirmed that caffeine is an effective component in coffee, which can activate the central nervous system, and can be used to make long-term analgesic drugs, which can resist drowsiness, colds, asthma and edema. Its side effects are addiction, insomnia, nervousness and high blood pressure.
Studies have shown that coffee contains anti-dementia substances, which can reduce the impact of harmful substances on the body and help prevent some diseases. Scientists say that when oxygen in the human body is mixed with other chemicals, it will form harmful substances that blindly destroy cells and body tissues, which is the cause of heart disease, vascular disease, tumor, decline of immune mechanism and neurasthenia. The research results of the American Coffee Institute show that coffee contains four times as many anti-dementia substances as tea. Nutrition plays a major role in strengthening the body's disease prevention mechanism. The substances that can resist dementia include vitamin E, vitamin C, carotene in soybean, red wine, some seasonings, fruits, onions, olives and so on. Roasted coffee beans are more resistant to dementia, and this substance in decaffeinated coffee will not be weakened or destroyed.
At the same time, experts point out that drinking a cup of coffee in the morning can refresh you, and drinking coffee during the day can refresh you. So coffee can be a little stronger at this time. It is best to have a little coffee after dinner or in the evening. Coffee is recognized as a healthy drink, but drinking coffee should be controlled for a certain time. Coffee or tea should not be used with meals, but should be drunk after meals. When drinking coffee, whether it is hot or cold, you should drink some boiled water. First of all, it can remove the peculiar smell of the mouth to get a better taste; Second, because coffee has diuretic effect, drinking more white water can improve urination and protect renal function, and you don't have to worry about getting angry when drinking coffee.
Black coffee has always been called "the messenger of health", and its effects on health mainly include:
1. Refreshing caffeine stimulates the central nervous system, which can make the mind clearer, have abundant thinking ability, concentrate and improve work efficiency;
2. Caffeine can make muscles contract freely and improve motor function.
3. appetizing and digestion caffeine stimulates gastrointestinal secretion of gastric acid, which can promote intestinal peristalsis, help digestion, prevent gastroptosis and have a rapid laxative effect.
4. Liqiao dehumidification caffeine can promote renal function, discharge excess sodium ions in the body, increase urination and improve abdominal distension and edema.
5. The linoleic acid contained in the coffee for promoting blood circulation and removing blood stasis has the functions of hemolysis, preventing thrombosis, enhancing vasoconstriction, relieving migraine and reducing the probability of stroke.
6. Pingfei Dingchuan Caffeine can inhibit parasympathetic nerve and reduce asthma attacks.
7. Dry deodorized caffeine contains tannin, which has a strong adsorption capacity for taste. If your room has just been renovated, make a pot of coffee indoors, and the taste will be quickly removed.
8, drinking coffee can protect the liver and hangover.
9, coffee can lose weight The best time to drink coffee to lose weight is 30 minutes after lunch to 1 hour and before going to work, taste a cup of rich sugar-free black coffee, with walking, can promote fat burning.
10, black coffee can effectively improve hypotension.
1 1, black coffee has antioxidant effect, which helps to prevent cancer and resist aging.
Coffee, we have been talking about it from an emotional point of view. Today, let's take a look at its essence.
1. Coffee contains some nutrients. Nicotinic acid in coffee contains vitamin B, and roasted coffee beans have higher content. But also free fatty acids, caffeine, tannic acid and so on.
2. Coffee is good for the skin. Coffee can promote metabolic function, activate digestive organs and play a great role in constipation. Bathing with coffee powder is a kind of hyperthermia, which has the function of losing weight.
3. Coffee has the function of relieving alcoholism. Drinking coffee after drinking will quickly oxidize acetaldehyde converted by alcohol, decompose it into water and carbon dioxide and excrete it.
4. Coffee can relieve fatigue. To eliminate fatigue, we must supplement nutrition, rest and sleep, and promote metabolic functions, and coffee has these functions.
Three cups of coffee a day can prevent gallstones. For caffeinated coffee, it can stimulate gallbladder contraction and reduce cholesterol which is easy to form gallstones in bile. Recently, researchers at Harvard University found that men who drink two or three cups of coffee a day have a lower risk of gallstones than 40%.
6. Drinking coffee regularly can prevent radiation injury. Radiation hazards, especially electrical radiation, have become the prominent pollution at present. Baba's Indian atomic researchers reached this conclusion in mouse experiments and said it can be applied to humans.
7. The health function of coffee. Coffee has the functions of resisting oxidation, protecting the heart, strengthening bones and muscles, benefiting the waist and knees, stimulating appetite, promoting eating, reducing fat and digestion, inducing resuscitation and removing dampness, promoting blood circulation and removing blood stasis, calming wind and relieving spasm.
8. The influence of coffee on mood. Experiments show that the average person absorbs 300 mg (about 3 cups of brewed coffee) every day, which will have a good influence on a person's alertness and mood.
The following six kinds of people should not drink coffee:
Suffering from hypertension, coronary heart disease, arteriosclerosis and other diseases-drinking coffee for a long time or in large quantities can cause cardiovascular diseases.
Older women-coffee can reduce calcium and cause osteoporosis. After menopause, women need to supplement ten times as much calcium every day.
Patients with stomach trouble-drinking too much coffee will make stomach trouble worse.
Pregnant women-drinking too much coffee can lead to fetal malformation or miscarriage.
Vitamin B 1 deficiency-vitamin B 1 can keep the balance and stability of the nervous system, and coffee can destroy it.
Cancer patients-drinking too much coffee is dangerous for normal people.
Close contact with coffee
Caffeine can stimulate the central nervous system and muscles, so it can refresh the mind, enhance thinking ability and restore muscle fatigue. Acting on the cardiovascular system can improve heart function, relax blood vessels and promote blood circulation. For the gastrointestinal system, it can help digestion and help the decomposition of fat.
Help to lose weight
I believe many people have heard that drinking black coffee can lose weight. In fact, this is only one of the factors. Caffeine can really accelerate the decomposition of fat, but at the same time, it needs to rely on muscle movement to convert excess fatty acids into heat energy for consumption. If there is no coordinated exercise, excess fatty acids will flow back along the blood stream and accumulate fat again. Therefore, after drinking coffee, you need to exercise actively at the same time in order to have a real weight loss effect! Coffee itself has calories, but not much. The main calories are the creamer and sugar you add when you drink coffee.
antioxidation
In recent years, all foods with antioxidant function are very popular in the market. Generally, vegetables and fruits are rich in vitamins A, C and B. Tea, which is quite popular in Japan, is regarded as healthy food because it is rich in antioxidants and can resist the harm of free radicals to human body. A few days ago, a research report pointed out that the content of antioxidants in coffee is four times that of tea, and it has stronger resistance to cardiovascular diseases. Moreover, coffee itself conforms to the principle of antioxidants, with darker color and bitter taste. Each coffee contains different antioxidants because of different brewing methods. For example, American coffee contains the least antioxidants, while espresso contains the most antioxidants. After adding creamer to coffee, its antioxidant effect will not be affected.
Improve dry eye
Foreign reports point out that people who drink coffee are much less likely to suffer from dry eye than those who don't drink coffee. This is mainly related to the purine component in coffee (eye drops containing purine can stimulate glands to secrete liquid, which has a certain protective effect on eyes). This is of course good news for computer people who love to drink coffee, but it should be noted that coffee itself has diuretic effect, even if some of its ingredients have protective effect, people who have already suffered from dry eye and those who have taken any drugs containing diuretic ingredients must be forbidden to take caffeinated drinks so as not to aggravate the loss of water in their bodies.
It can relieve pain.
Headache caused by a bad night's sleep or pain caused by vasoconstriction on one side of the temple can be relieved by coffee, but it must be drunk in the morning or at noon (note: it is forbidden from afternoon to night).
The amount of coffee
Coffee is good for people, but you should not drink too much. It is advisable to drink no more than 2 cups a day. For people who are easily nervous and anxious, drinking too much may be harmful.
coffee time
It is best to drink coffee after breakfast and lunch, because it can promote the peristalsis of the stomach, help digestion and break down the high-calorie and high-fat food you eat, and will not stimulate the stomach like drinking coffee on an empty stomach. It is best not to drink coffee after meals, for fear of affecting sleep.
If you want to stay up late by drinking coffee, you may unconsciously drink too much, which is not good for your health.
When you're nervous, it makes things worse.
Caffeine helps to improve alertness, sensitivity, memory and attention. But if you drink more coffee than you are used to, you will have the same dose of stimulants, which will cause tension. For people with anxiety tendency, caffeine can aggravate the symptoms of sweating, palpitation and tinnitus.
Aggravate hypertension
Caffeine is often combined with other simple painkillers because of its analgesic effect. However, if you take a lot of caffeine for a long time, if you already have high blood pressure, using a lot of caffeine will only make your situation worse. Because caffeine alone can raise blood pressure, if combined with emotional tension, it will have a dangerous multiplier effect. Therefore, people at risk of hypertension should especially avoid drinking caffeinated drinks when working pressure is high. Some people who drink coffee all the year round think they are immune to the effects of caffeine, but this is not the case. A study shows that after drinking a cup of coffee, the blood pressure can rise for as long as 12 hours.
Induced osteoporosis
Caffeine itself has a good diuretic effect. If you drink a lot of coffee for a long time, it will easily lead to bone loss, which will adversely affect the preservation of bone mass and may increase the threat of osteoporosis in women. However, the premise is that people who usually have insufficient calcium intake in food, or people who don't exercise often, and postmenopausal women, due to insufficient estrogen, calcium loss, coupled with a large amount of caffeine, may pose a threat to bones. If you can enjoy it in a reasonable amount, you can still do it without choking.
These people drink coffee carefully.
hepatopath
Caffeine can prolong the death time of caffeine in the body. It takes 2 hours for normal adults to metabolize caffeine, but it may take 4-5 hours for patients with liver disease or liver insufficiency. Therefore, patients with liver disease must be careful when drinking coffee, and it is best not to drink it after the evening, so as to avoid the long metabolism time affecting sleep, and it is best not to exceed 1 cup a day.
Patients with digestive system diseases
I believe that people who often have stomachaches and stomach problems have an experience. Doctors will definitely tell them not to eat irritating foods, including wine, peppers, coffee, tea and carbonated drinks.
Coffee is one of them, because its tannic acid can stimulate gastric acid secretion. If you are a patient with acute digestive system diseases, you must avoid drinking it. After recovery, if you drink coffee occasionally, it is best to use it after meals to avoid drinking coffee on an empty stomach.
pregnant woman
Many women will pay special attention to all the food they eat after pregnancy, and caffeinated drinks are of course listed as one of the taboos. This is mainly due to the slow metabolism of caffeine in pregnant women, which will prolong the time of caffeine staying in the body, while it takes eight or nine months for the fetus in the abdomen to remove caffeine from the blood through metabolism.
children
Because children's liver and kidney are not fully developed and their detoxification ability is poor, the half-life of caffeine metabolism will be prolonged, so generally speaking, children under 12 need to ban caffeine intake. Even Europeans and Americans who drink coffee as boiling water all day have strict restrictions on children's drinking coffee.