Personally I don’t like drinking. Drinking too much will make my stomach upset and cause insomnia. But it seems that potassium fertilizer is a good thing, but I don’t understand. The following is copied. You can weigh it yourself! ·

Coffee may make you sleepless at night and may also raise your blood pressure. But Professor Martin, director of the Coffee Research Institute at Vanderbilt University in the United States, recently said that coffee contains hundreds of health-promoting ingredients that can resist liver damage, various cancers, asthma, heart disease and paralysis shaking.

He pointed out that drinking 2-4 cups of coffee a day is beneficial. Non-coffee drinkers are more likely to develop these diseases than coffee drinkers. Research in the past 20 years has confirmed that caffeine is an active ingredient in coffee. It can activate the central nervous system and can be used to make long-acting analgesics that can fight drowsiness, colds, asthma and edema. The side effects are addiction, insomnia, nervousness and increased blood pressure.

Research shows 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 is mixed with other chemicals in the human body, it will form harmful substances that blindly destroy cells and body tissues. This is the cause of heart disease, vascular disease, tumors, immune mechanism decline and neurasthenia. Research results from the American Coffee Research Institute show that coffee contains four times more anti-dementia substances than tea. Nutrition plays a major role in strengthening the body's disease prevention mechanisms. Substances that can fight dementia include vitamin E, vitamin C, carotene in soybeans, red wine, certain seasonings, fruits, onions and olives. Roasted coffee beans are more resistant to dementia, and this substance is not weakened or destroyed in decaffeinated coffee.

At the same time, experts point out that drinking a cup of coffee after getting up in the morning can wake you up, and taking a sip of coffee during the day can refresh you. Therefore, the coffee at this time can be slightly stronger. It is better to drink coffee after a meal or in the evening slightly lighter. Coffee is recognized as a healthy drink, but drinking coffee should be done within a certain amount of time and in moderation. Coffee or tea is not suitable to be consumed with meals and should be consumed after meals. When drinking coffee, you should drink some boiled water regardless of whether it is hot or cold. Firstly, this can remove the odor in the mouth for better taste; secondly, because coffee has a diuretic function, drinking more water can increase urination and protect kidney function. At the same time, there is no need to worry about "getting angry" when drinking coffee.

Black coffee has always been called the "health messenger". Its main health effects are:

1. Refreshing and refreshing. Caffeine stimulates the central nervous system and can make the mind more alert. Wake up, have abundant thinking ability, concentrate, and improve work efficiency;

2. Strengthen muscles and bones, sharpen waist and knees. Caffeine can make muscles contract freely and improve motor function.

3. Appetite and digestion: Caffeine stimulates the gastrointestinal tract to secrete gastric acid, which can promote intestinal motility, help digestion, prevent gastroptosis, and has a rapid laxative effect.

4. Relieve orifices and dehumidify. Caffeine can promote kidney function, discharge excess sodium ions from the body, increase urination, and improve abdominal distension and edema.

5. Promote blood circulation and remove blood stasis. The linoleic acid contained in coffee has the effects of hemolysis and preventing thrombosis, enhancing vasoconstriction, relieving migraines, and reducing the chance of stroke.

6. Ping Fei and Ding Chuan Caffeine inhibits parasympathetic nerves and reduces asthma attacks.

7. Dampness and deodorization Caffeine contains tannins, which have a strong adsorption capacity for taste. If your room has just been renovated, brewing a pot of coffee indoors will quickly remove the odor.

8. Drinking coffee can protect the liver and relieve hangover.

9. Coffee can help you lose weight. The best time to drink coffee to lose weight is within 30 minutes to 1 hour after lunch and before get off work. Enjoy a cup of rich black coffee without sugar, and combine it with walking to promote fat loss. combustion.

10. Black coffee can effectively improve hypotension.

11. Black coffee has antioxidant effects and helps prevent cancer and anti-aging.

We always talk about coffee from an emotional perspective. Today, let’s take a look at its essence.

1. Coffee contains certain nutrients. The niacin in coffee contains vitamin B, and the content is higher in roasted coffee beans. And there are free fatty acids, caffeine, tannins, etc.

2. Coffee is good for the skin. Coffee can promote metabolic function, activate digestive organs, and is very effective in treating constipation. Taking a bath with coffee powder is a kind of warm therapy and has the effect of losing weight.

3. Coffee has the function of relieving hangover. Drinking coffee after drinking alcohol will rapidly oxidize acetaldehyde converted from alcohol, decompose it into water and carbon dioxide and be excreted from the body.

4. Coffee can eliminate fatigue. To eliminate fatigue, it is necessary to supplement nutrition, rest and sleep, and promote metabolic function, and coffee has these functions.

5. Three cups of coffee a day can prevent gallstones. Caffeinated coffee can stimulate the contraction of the gallbladder and reduce the cholesterol in the bile that easily forms gallstones. Recently, researchers from Harvard University in the United States found that men who drink two to three cups of coffee a day have a lower than 40% chance of developing gallstones. .

6. Regular drinking of coffee can prevent radiation damage. Radiation damage, especially radiation from electrical appliances, has become a more prominent form of pollution. Indian atomic researchers reached this conclusion in experiments on mice and said it can be applied to humans.

7. The health and medical functions of coffee. Coffee has the functions of antioxidant and heart protection, strengthening muscles and bones, benefiting the waist and knees, stimulating appetite and promoting food intake, eliminating cellulite and accumulation, promoting orifices and dehumidification, activating 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 of caffeine a day (about 3 cups of brewed coffee), which will have a good impact on a person's alertness and mood.

The following six types of people should not drink coffee:

Suffering from high blood pressure, coronary heart disease, arteriosclerosis and other diseases - long-term or large amounts of coffee drinking can cause cardiovascular disease.

Older women - coffee can reduce calcium and cause osteoporosis. After menopause, women need ten times more calcium every day.

Patients with stomach problems - excessive coffee consumption can worsen stomach problems.

Pregnant women - drinking too much coffee can cause fetal malformations or miscarriage.

Those who are deficient in vitamin B1 - Vitamin B1 can maintain the balance and stability of the nervous system, but coffee has a damaging effect on it.

Cancer patients—drinking excessive amounts of coffee poses a risk of cancer to normal people.

Intimate contact with coffee

Because caffeine stimulates the central nervous system and muscles, it can cheer up, enhance thinking ability, and restore muscle fatigue. Acting on the cardiovascular system, it can improve heart function, dilate blood vessels, and promote blood circulation. For the gastrointestinal system, it can aid digestion and help break down fat.

Helps 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 indeed accelerate the decomposition of fat, but At the same time, muscle exercise is required to convert excess fatty acids into heat energy and be consumed. If there is no coordinated exercise, the excess fatty acids will flow back along the blood stream and accumulate fat again. Therefore, you need to be active at the same time after drinking coffee to achieve the real weight loss effect! Coffee itself has calories, but not much. The main calories come from the creamer and sugar you add when drinking coffee.

Antioxidant capacity

In recent years, foods with antioxidant functions have become popular in the market. Generally known vegetables and fruits are rich in A, C, and B vitamins. And tea, which is very popular in Japan, is considered a healthy food because it is rich in antioxidants, which can fight the damage of free radicals to the human body. A recent research report pointed out that coffee contains 4 times more antioxidants than tea and is more effective in fighting cardiovascular diseases. Coffee itself also complies with the principles of antioxidants, is dark in color and has a bitter taste. The amount of antioxidants contained in each coffee is also different due to the brewing method. For example, Americano contains the least amount of antioxidants, while Espresso contains the most antioxidants. Adding creamer to coffee will not affect its antioxidant effect.

Improve dry eyes

Foreign reports 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 (purine-containing eye drops can stimulate the glands to secrete liquid, which has a certain protective effect on the eyes). This is of course good news for computer users who love to drink coffee, but it should be noted that coffee itself has a diuretic effect. Even if some of its ingredients have a protective effect, it is not suitable for people who already suffer from dry eye syndrome, and People who take any medicine containing diuretic ingredients must avoid taking caffeinated drinks to avoid exacerbating the loss of water in the body.

Can relieve pain

Headache caused by not sleeping well at night, or pain caused by vasoconstriction on the temple side, pain caused by these non-organic factors, are all You can use coffee to relieve pain, but it must be drank in the morning or noon (note: prohibited from afternoon to night).

Amount of coffee

Although coffee is good for the human body, you should not drink too much. It is appropriate to drink no more than 2 cups a day. For people who are prone to stress and anxiety, drinking too much may cause harmful.

Time to drink coffee

It is best to drink coffee after breakfast and lunch, because this can promote gastrointestinal motility, help digestion, and can break down high-calorie and high-fat foods. Food will not cause irritation to the gastrointestinal tract like drinking coffee on an empty stomach. It is best not to drink coffee after dinner, as it may affect your sleep.

If you want to drink coffee to stay up all night, you may drink too much without knowing it, which is not good for your health.

Adds chaos when you are nervous

Caffeine helps improve alertness, sensitivity, memory and concentration. But drinking more coffee than you are used to will produce the same dose of stimulants that can cause jitteriness. For people prone to anxiety disorders, caffeine can worsen symptoms such as sweaty palms, heart palpitations, and tinnitus.

Aggravates high blood pressure

Because of its own analgesic effect, caffeine is often compounded with other simple analgesics. However, if you take it in large amounts for a long time, if you already have high blood pressure, , using large amounts of caffeine will only make your condition worse. Because caffeine alone can increase blood pressure, and if coupled with emotional stress, it will have a dangerous multiplicative effect. Therefore, people at risk of high blood pressure should especially avoid drinking caffeinated drinks when they are under high work pressure. .

Some people who have the habit of drinking coffee all year round think that they are immune to the effects of caffeine. However, this is not the case. A study shows that after drinking a cup of coffee, blood pressure can increase for up to 12 hours.

Induce osteoporosis

Caffeine itself has a good diuretic effect. If you drink coffee in large amounts for a long time, it will easily cause bone loss and be detrimental to the preservation of bone mass. The effects, for women, may be an increased risk of osteoporosis. But the premise is that people who usually lack enough calcium in their food, or people who don’t move often, plus postmenopausal women, lose calcium due to lack of estrogen. The above conditions are combined with a large amount of caffeine. , may pose a threat to the bone. If you can enjoy it in reasonable amounts, you can still avoid eating due to choking.

These people should drink coffee with caution

Patients with liver disease

Caffeine will prolong the time it takes for caffeine to be metabolized in the body. Generally, it takes 2 hours for normal adults to metabolize caffeine. However, for patients with liver disease or liver dysfunction, the metabolism of caffeine may take 4-5 hours. Therefore, patients with liver disease must be careful when drinking coffee. It is best not to Drink it after evening to avoid affecting sleep due to long metabolism time, and it is best not to exceed 1 cup a day.

Patients with digestive system diseases

I believe that people who often suffer from stomachache and stomach problems have an experience, that is, doctors will definitely advise not to eat irritating foods, including: wine, chili, coffee, Tea, carbonated drinks.

The reason why coffee is on the list is because the tannic acid in it stimulates gastric acid secretion. Patients in the acute stage of digestive diseases must avoid it. After recovering from health, if you drink coffee occasionally, it is best to drink it after meals and avoid drinking coffee on an empty stomach.

Pregnant women

Many women will pay special attention to all the food they eat after pregnancy. Of course, drinks containing caffeine are also listed as one of the taboos. This is mainly because pregnant women metabolize caffeine slowly, and the time that caffeine stays in the body is extended. The fetus in the abdomen cannot clear caffeine from the blood through metabolism until the fetus is eight or nine months old.

Children

Due to the incomplete development of children’s liver and kidneys and poor detoxification ability, the half-life of caffeine metabolism will be prolonged. Therefore, generally speaking, children under 12 years old need to be prohibited from using it. Ingesting caffeine. Even Europeans and Americans who drink coffee like boiled water all day long have strict restrictions on children drinking coffee.