Advantages and disadvantages of drinking coffee 1. Coffee is rich in certain nutrients. Nicotinic acid in coffee is rich in vitamin B, and the content of roasted coffee beans is higher. And there are 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 have great effect on constipation. Taking a bath with coffee powder is a kind of thermotherapy, which has the function of slimming. Drinking a cup of coffee after a meal also helps digestion.
3. Coffee has the function of relieving alcoholism. Drinking coffee after drinking will make acetaldehyde transformed from alcohol rapidly oxidized, differentiated into water and carbon dioxide and excreted.
4. Coffee can eliminate fatigue. To eliminate fatigue, it is necessary to make up for nutrients, rest and sleep, and promote metabolism, and coffee has these functions.
3 cups of coffee a day can prevent gallstones. Caffeine-containing coffee can shorten the gallbladder and reduce cholesterol in bile, which is a simple component of gallstones. Recently, researchers at Harvard University in the United States found that men who drink two or three cups of coffee a day have a lower chance of getting gallstones than 40%.
6. Drinking coffee often can prevent radiation damage. Radiation damage, especially the radiation of electrical appliances, has become an outstanding pollution at present. The atomic researchers in Baba, India, got this theory in mouse experiments and indicated that it can be applied to humans.
7. The health care function of coffee. Coffee has the functions of resisting oxidation, protecting heart, strengthening bones and muscles, benefiting waist and knees, stimulating appetite, promoting food intake, eliminating fat and food stagnation, inducing resuscitation and removing dampness, promoting blood circulation and removing blood stasis, calming wind and stopping spasm.
8. The influence of coffee on mood. Experiments show that people usually absorb 300 mg (about 3 cups of brewed coffee) of caffeine a day, which will have an outstanding impact 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 many times can cause cardiovascular diseases.
Women in their later years? Coffee will reduce calcium and lead to osteoporosis. After menopause, women need to add ten times the amount of calcium every day.
Stomach trouble patients? Drinking too much coffee can worsen stomach problems.
Pregnant woman? Drinking too much coffee can cause fetal deformation or miscarriage.
Vitamin B 1 deficiency? Vitamin B 1 can maintain the balance and stability of the nervous system, but coffee can damage it.
Excessive drinking of coffee by cancer patients poses a risk of cancer to normal people.
Because coffee has a strong influence on the brain and directly affects the mental state, when coffee was first introduced to Europe in the sixteenth century, it was suggested that coffee could only be drunk with a doctor's prescription. For four or five centuries, the vigorous development of coffee civilization has made it impossible for everyone to live without coffee for a day. However, the medical profession has continuously suggested that the impact of coffee on the human body is not only refreshing.
Let's talk about the refreshing effect of coffee first. According to the research, drinking100-200mg of caffeine every day is enough to refresh the mind and is harmless to the body. As far as office workers are concerned, the best time to drink coffee is after breakfast in the morning, when they first arrive at the office, and after lunch break, when they are ready to start their busy homework in the afternoon. A cup of coffee at the moment can get rid of the usual drowsiness after a meal.
Drinking too much coffee will also lead to the loss of calcium. Older people, especially middle-aged and elderly women, are a big threat to osteoporosis. Two or more cups of coffee a day will increase the probability of fracture by about 50%, which is shocking. The professor thinks that it is safest for the elderly to drink coffee once a day.
There are still some things you don't know about the advantages and disadvantages of coffee to human body:
Filtered coffee will not add cholesterol, while drinking coffee will add a little LDl bad cholesterol, but it will also add HDL good cholesterol.
Coffee will affect defecation for about one-third of Ankang people. Occasionally, when defecation is not smooth, drinking a cup of espresso will have an unexpected laxative effect.
Coffee can reduce the incidence of Parkinson's disease.
Drinking coffee during diarrhea, the diuretic effect of coffee will promote the discharge of water in the body and aggravate diarrhea.
Coffee will affect the shortening of gallbladder, and people with gallstones will stop drinking coffee.
Drinking too much coffee leads to spontaneous abortion in pregnant women.
Caffeine in coffee can suppress asthma. When asthma occurs, patients can be given two cups of strong coffee in an urgent situation, because coffee has the effect of bronchial drugs. People who drink coffee often have less asthma.
Coffee can also eliminate depression and improve sexual desire.
Coffee is really a wonderful food, but how to benefit from it and avoid its harm depends on your physical condition and weight!
Secondly: Close contact with coffee Caffeine can refresh the spirit, enhance the thinking ability, and recover from muscle fatigue because it affects the central nervous system and muscles. Acting on the cardiovascular system can improve heart function, relax blood vessels and promote blood circulation. As for the gastrointestinal system, it can help digestion and help the differentiation of fat.
Many people have heard that drinking black coffee can reduce weight. In fact, this is only one of the elements. Caffeine can really accelerate the differentiation of fat, but it is more necessary to rely on muscle exercise to convert the remaining fatty acids into heat energy. If there is no cooperative exercise, the remaining fatty acids will flow back from the beginning along the blood stream and accumulate fat from the beginning. Therefore, the demand for drinking coffee will be active together in the future, so as to carry forward the real slimming effect! Coffee itself has calories, but it is not much. The primary calories are the creamer and sugar that you participate in when drinking coffee.
Antioxidant ability In recent years, all foods with antioxidant function have become popular in shopping malls. The foods that are commonly known as vegetables and fruits and rich in vitamins A, C and B, as well as the tea that is moderately popular in Japan, are regarded as healthy foods because they are rich in antioxidant substances, which can prevent the damage of free radicals to the human body.
A few days ago, a discussion statement pointed out that coffee contains four times more antioxidants than tea, which is more resistant to cardiovascular diseases, and coffee itself also conforms to the criteria of antioxidants, with dark color and bitter taste. Each coffee contains different antioxidants because of the brewing method. 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.
Improving dry eyes Foreign statements point out that coffee drinkers are significantly less likely to suffer from dry eyes than non-coffee drinkers. This is mainly related to the purine component in coffee (eye drops containing purine can affect the excretion of liquid by glands and have 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 components in it have maintenance effect, it is necessary for people who have dry eye and those who take any drugs rich in diuretic components to stop taking caffeinated drinks and prevent the loss of water in their bodies from aggravating.
It can relieve the headache caused by a sleepless night, or the pain caused by the shortening of blood vessels in the temple. The pain caused by these non-organic factors can be alleviated 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 is good for the human body, but you can't drink too much coffee. It is advisable not to exceed 2 cups a day. For people with simple and serious anxiety, drinking too much can be harmful.
Coffee is the best time to drink coffee. After breakfast and lunch, because it can promote the activities of the stomach and help digestion, it can differentiate the high-calorie and high-fat foods that you eat, and it will not affect the stomach like drinking coffee on an empty stomach. It's best not to drink coffee after dinner, for fear that it will affect your sleep. If you want to stay up all night by drinking coffee, you may drink too much unconsciously, which is not good for your health.
In severe cases, adding caffeine is helpful to improve alertness, sensitivity, memory and concentration. But if you drink more coffee than you are used to, you will have the same dose of stimulants, which will lead to nervousness. For people who tend to have anxiety disorders, caffeine can make sweaty palms, palpitations and tinnitus worse.
Caffeine, which aggravates hypertension, is often combined with other simple painkillers because of its analgesic effect. However, if you take it for a long time, if you already have hypertension, using a lot of caffeine will only make your condition worse. Because caffeine alone can raise blood pressure, if coupled with a serious mood, a risky multiplication will occur.
Therefore, people at risk of hypertension should especially avoid drinking caffeinated drinks when the work pressure is high. Some people who have the habit of drinking coffee all the year round think that they are immune to 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.
Caffeine, which induces osteoporosis, has a good diuretic effect. If you drink coffee for a long time and a lot, bone loss will be formed briefly, which will have a bad influence on the preservation of bone mass. For women, osteoporosis can be added. However, the condition is that there is a shortage of calcium in ordinary food, or people who don't move often, plus women after menopause, calcium formed by lack of estrogen is lost. These conditions, together with a lot of caffeine, can be enough to threaten bone formation. If you can enjoy it in a reasonable amount, you can still do it without choking.
These people drink coffee carefully, and caffeine in patients with liver disease will prolong the time when caffeine dies in the body. Usually, normal adults need 2 hours of caffeine metabolism, but patients with liver disease or liver insufficiency can need 4-5 hours of caffeine metabolism, so patients with liver disease must be careful when drinking coffee, and it is best not to drink it after dusk to prevent sleep from being affected by long metabolism time, and it is best not to exceed 1 cup a day.
Patients with digestive system diseases trust people who often suffer from stomach pains and stomach diseases, that is, doctors will definitely order them not to eat influential foods, including wine, peppers, coffee, tea and carbonated drinks. The reason why coffee is among them is that tannic acid will affect gastric acid excretion, which must be prevented if it is a patient with acute digestive disease. After recovery, if you drink coffee occasionally, it is best to use it after meals to prevent you from drinking coffee on an empty stomach.
Pregnant women Many women will pay special attention to all the food they eat from the time they are pregnant, 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, and the time when caffeine stays in the body will be extended. It will take eight or nine months for the fetus in the abdomen to get rid of caffeine in the blood through innovation.
Children's half-life of caffeine metabolism will be extended because of incomplete development of liver and kidney and poor detoxification ability, so generally speaking, teenagers under 12 need to stop absorbing caffeine. Even Europeans and Americans who drink coffee as boiling water all day have strict restrictions on children drinking coffee.