Advantages and disadvantages of drinking coffee 1. Coffee is rich in some nutrients. Nicotinic acid in coffee is rich in vitamin B, and the content of roasted coffee beans is higher. 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 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 quickly oxidize acetaldehyde converted from alcohol, differentiate into water and carbon dioxide and excrete it.
4. Coffee can relieve fatigue. Eliminating fatigue requires nutrition, rest and sleep, and promote metabolism, and coffee has these functions.
Three cups of coffee a day can prevent gallstones. Caffeine-containing coffee can shorten the gallbladder and lower cholesterol in bile, which is a simple component of gallstones. 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 a prominent pollution at present. Atomic researchers in Baba, India, got this theory 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 people usually absorb 300 mg (about 3 cups of brewed coffee) of caffeine every day, which will have a prominent 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 in large quantities will cause cardiovascular diseases.
Drinking coffee in elderly women will reduce calcium and lead to osteoporosis. After menopause, women need to supplement ten times as much calcium every day.
Excessive drinking of coffee by patients with stomach diseases will aggravate stomach diseases.
Excessive drinking of coffee by pregnant women can lead to fetal deformation or miscarriage.
Vitamin B 1 deficiency can maintain the balance and stability of the nervous system, and coffee will damage it.
Cancer patients? Drinking too much coffee is a cancer risk for 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 everyone inseparable from coffee for a day. However, the medical community has constantly suggested that the impact of coffee on the human body is not just refreshing.
Let's start with the refreshing effect of coffee. According to the research, drinking100-200mg of caffeine every day is enough to refresh and harmless to the body; For office workers, 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 drive away the usual drowsiness after a meal.
Drinking too much coffee can also lead to calcium loss. The elderly, 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 it is safest for the elderly to drink coffee once a day.
There are some things you don't know about the advantages and disadvantages of coffee:
Filtering coffee will not increase cholesterol, while drinking coffee will increase LDl bad cholesterol, but it will also increase HDL good cholesterol.
Coffee will affect the defecation of 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.
Drink coffee when you have diarrhea. The diuretic effect of coffee will promote the excretion of water in the body and aggravate diarrhea.
Coffee will affect the shortening of gallbladder, and people with gallstones will not drink coffee.
Drinking too much coffee leads to spontaneous abortion of pregnant women.
Caffeine in coffee can inhibit asthma. When asthma attacks, patients can be given two cups of strong coffee in an emergency, because coffee has the function of bronchial medicine. People who drink coffee regularly have less asthma.
Coffee can also eliminate depression and improve sexual desire.
Coffee is indeed 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 brain, enhance thinking ability and restore 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 fat differentiation.
Many people have heard that drinking black coffee can lose weight. In fact, this is only one of the elements. Caffeine can indeed 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 you don't cooperate with 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 coffee will be active together in the future, and the real slimming effect will be carried forward! Coffee itself has calories, but not much. The main calories are the creamer and sugar you take part in when you drink coffee.
Antioxidant capacity In recent years, all foods with antioxidant function have become popular in shopping malls. Foods rich in vitamins A, C and B, commonly known as vegetables and fruits, and moderately popular tea in Japan are regarded as healthy foods because they are rich in antioxidants and can prevent free radicals from harming the human body.
A few days ago, a discussion statement pointed out that the content of antioxidants in coffee is four times that of tea, which is more resistant to cardiovascular diseases, and coffee itself also meets the standards 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.
Foreign statements on improving dry eye indicate 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 affect the excretion of liquid by glands and have a certain protective effect on eyes). This is of course good news for computer people who love coffee, but it should be noted that coffee itself has diuretic effect, even if some of its components have maintenance effect, it is necessary for people with dry eye and those who take any drugs rich in diuretic components to stop taking caffeinated drinks to prevent the water loss in the body from increasing.
It can relieve the headache caused by sleepless night, or the pain caused by the shortening of temporal blood vessels. The pain caused by these non-organic factors can be relieved by coffee, but it must be drunk in the morning or at noon (note: drinking is forbidden from afternoon to evening).
The amount of coffee is good for the human body, but you should not drink too much. It is advisable not to exceed 2 cups a day. For people with simple and severe anxiety, drinking too much may be harmful.
Coffee is the best time to drink coffee. After breakfast and lunch, because it can promote gastrointestinal activity and help digestion, you can distinguish between high-calorie and high-fat foods that you eat, and it will not affect your 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.
In severe cases, adding 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 lead to nervousness. For people with anxiety tendency, caffeine can make palms sweat, 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 high blood pressure, using a lot of caffeine will only worsen your condition. Because caffeine alone can raise blood pressure, if you add serious emotions, it will multiply dangerously.
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 caffeine, but they are not. 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 a lot of coffee for a long time, it will cause bone loss for a short time, which will have a negative impact on the preservation of bone mass. For women, osteoporosis can be added. However, the condition is that ordinary food is short of calcium, or people who don't exercise often, plus calcium loss caused by estrogen deficiency after menopause. These conditions, together with a large amount of caffeine, are enough to threaten the formation of bones. 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 of caffeine death in the body. Usually, normal adults need 2 hours of caffeine metabolism, but patients with liver disease or hepatic 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 the metabolism from affecting sleep for a long time, and it is best not to exceed 1 cup a day.
Patients with digestive diseases trust people who often have stomachaches and stomach problems, that is, doctors will definitely tell them not to eat influential foods, including wine, peppers, coffee, tea and carbonated drinks. The reason why coffee is in it is because tannic acid can affect gastric acid excretion. If it is a patient with acute digestive system diseases, it must be prevented. After recovery, if you drink coffee occasionally, it is best to use it after meals to prevent drinking coffee on an empty stomach.
Pregnant women Many women will pay special attention to all the foods they eat from the beginning of 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, and the time for caffeine to stay in the body will be prolonged. It takes eight or nine months for the fetus in the belly to get rid of caffeine in the blood through innovation.
Children's half-life of caffeine metabolism will be prolonged due to incomplete liver and kidney development and poor detoxification ability, so generally speaking, teenagers below 12 need to stop absorbing caffeine. Even Europeans and Americans who drink coffee as boiling water all day have strict restrictions on children's drinking coffee.