Advantages and disadvantages of coffee What are the advantages and disadvantages of drinking coffee?

Modern medicine has proved that coffee can refresh the mind, make people excited, eliminate fatigue, promote thinking, stimulate appetite and help digestion, but not everyone is suitable for drinking coffee. Do you really know coffee? Let's look at the advantages and disadvantages of drinking coffee.

Advantages and disadvantages of coffee

First of all, the benefits of drinking coffee

Antioxidant effect

Coffee is rich in caffeine, caffeic acid, chlorogenic acid and other ingredients, which can effectively fight against free radicals that threaten our health, and free radicals are the main causes of many diseases (such as cardiomyopathy, arteriosclerosis, stroke, emphysema, Parkinson's disease). Excessive free radicals will affect the metabolism of the body, destroy cells and then affect organs and tissues.

Modern medical research shows that coffee beans contain nutrients such as sugar, protein, fat, acid, potassium, crude fiber and water. In addition, coffee also contains caffeine, tannic acid, alkaloids and other ingredients beneficial to human health. Protect the function of heart blood vessels

Coffee contains high content of polyphenols, which is a powerful antioxidant and can delay the oxidation time of low-density lipoprotein by as much as three times, dissolve thrombus and prevent thrombosis. Coffee can also enhance cardiovascular contraction and avoid headaches caused by vasodilation. In addition, a small amount of coffee can also enhance myocardial contraction function, promote blood circulation, and achieve the role of preventing cardiovascular diseases.

refreshing

Caffeine will affect the central nervous system of the brain, prolong the waking time of the brain, make the thinking clear, sharp and focused, and improve the efficiency of work and study. Coffee will stay in the body for 3 to 5 hours.

So coffee has a long-term refreshing effect. weight control

Caffeine can increase the rate at which the human body consumes calories. It is found that 100 mg caffeine (about one cup of coffee) can accelerate the decomposition of fat, increase the metabolic rate of human body by 3% ~ 4%, increase the consumption of heat energy, and have the effect of losing weight when drunk in moderation.

Reduce the chance of gallstones

People who drink 2-3 cups of coffee every day are better than those who don't.

The average risk of gallstones is 40% less. Tannic acid contained in coffee has hemostatic and deodorizing effects. Promote digestion

Caffeine will * * * sympathetic nerve, improve the secretion of gastric juice, and moderate drinking after meals will help digestion.

Diuretic laxative

Coffee has diuretic effect, which can increase the amount of urination and increase the number of trips to the toilet. Coffee is also a rapid laxative, which is caused by gastrointestinal hormones or peristalsis hormones, but its laxative effect is only effective when drinking in the morning, but not at other times.

Relieve pain

Caffeine, as a drug, can strengthen the effect of some painkillers. Coffee is also a good product for migraine, but it can only be used occasionally. But it's best to drink coffee before symptoms appear, because it takes 10 to 30 minutes to take effect.

Second, the disadvantages of drinking coffee

1, you get confused when you are nervous.

Caffeine helps to improve alertness, sensitivity, memory and attention. But drinking more coffee,

Will produce similar to eating the same dose of stimulants, will cause nervousness. For people with anxiety tendency, caffeine can aggravate the symptoms of sweating, palpitation and tinnitus. 2, aggravate high blood pressure

The advantages and disadvantages of coffee will aggravate high blood pressure.

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. 3. 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. Third, people who are not suitable for drinking coffee

1. Patients with coronary heart disease: Drinking coffee often will increase the cholesterol content in blood. Foreign survey data show that among patients with myocardial infarction, those who don't drink coffee account for 17%, and those who drink about 5 cups a day account for 48%.

2. Patients with peptic ulcer: Caffeine will secrete gastric acid, relax the smooth muscle blood vessels of the digestive system, accelerate the metabolism of food, and reduce the nutritional value of food.

3. Diabetic patients: Caffeine can reduce insulin secretion by pancreas, reduce tolerance to glucose, increase insulin excretion and raise blood sugar.

4. Hypertensive patients: Caffeine can raise the blood pressure of some sensitive individuals, but it has no effect on people who are used to drinking about two cups a day.

5. Osteoporosis patients: Coffee can increase the excretion of calcium, prevent the absorption of calcium by the stomach of the elderly, aggravate the calcium deficiency of the elderly and accelerate the occurrence of osteoporosis. According to the American Journal of Epidemiology, drinking coffee often increases the risk of osteoporosis in the elderly, which is the main reason for the high incidence of hip fractures in the elderly.

How to drink traditional coffee from different countries

1, Italy: It is a small cup of espresso, which can be made quickly and drunk quickly. Only people who have been exposed to coffee for a long time can get used to its heavy taste.

2. France: French people prefer weak coffee, which is generally soaked in moderately roasted and coarsely ground coffee beans. I like to drink chicory root.

3. Britain: Coffee powder is usually put into a cloth bag, then tied tightly and put into a clay pot with water. Boil it on the stove and pour it into a cup for drinking.

4, the Netherlands: coffee, sugar, cream can not be less, the taste is quite heavy. At the end of the drink, I began to get tired and had to adjust with clear water.

5. Sudan: It is their favorite to pour black coffee into a coffee pot and add spices such as cloves.

6. Turkey: Boil the good coffee beans, sugar and water in a container named "Ibrik". The coffee grounds left in the coffee cup can also be used to predict the future.

7. United States: Convenient electric drip coffee machine is one of the necessities of every family in the United States, which is more in line with their fast-paced lifestyle.

8. Greece: Greek coffee needs to be cooked slowly in a specially prepared small liquefied gas tank. The problem is that this kind of coffee contains a large proportion of coffee grounds, and you can't drink it after only a few mouthfuls.

9. Ethiopia: When drinking coffee, the host will put on neat national costumes, pour them into small porcelain cups without handles, and enjoy them with crispy wheat and local snacks.

10, Russia: When people drink coffee, they will choose black coffee with sugar and a small piece of lemon. This kind of coffee tastes rich and peaceful.

4. Hypertensive patients: Caffeine can raise the blood pressure of some sensitive individuals, but it has no effect on people who are used to drinking about two cups a day.

5. Osteoporosis patients: Coffee can increase the excretion of calcium, prevent the absorption of calcium by the stomach of the elderly, aggravate the calcium deficiency of the elderly and accelerate the occurrence of osteoporosis. According to the American Journal of Epidemiology, drinking coffee often increases the risk of osteoporosis in the elderly, which is the main reason for the high incidence of hip fractures in the elderly.

How to drink traditional coffee from different countries

1, Italy: It is a small cup of espresso, which can be made quickly and drunk quickly. Only people who have been exposed to coffee for a long time can get used to its heavy taste.

2. France: French people prefer weak coffee, which is generally soaked in moderately roasted and coarsely ground coffee beans. I like to drink chicory root.

3. Britain: Coffee powder is usually put into a cloth bag, then tied tightly and put into a clay pot with water. Boil it on the stove and pour it into a cup for drinking.

4, the Netherlands: coffee, sugar, cream can not be less, the taste is quite heavy. At the end of the drink, I began to get tired and had to adjust with clear water.

5. Sudan: It is their favorite to pour black coffee into a coffee pot and add spices such as cloves.

6. Turkey: Boil the good coffee beans, sugar and water in a container named "Ibrik". The coffee grounds left in the coffee cup can also be used to predict the future.

7. United States: Convenient electric drip coffee machine is one of the necessities of every family in the United States, which is more in line with their fast-paced lifestyle.

8. Greece: Greek coffee needs to be cooked slowly in a specially prepared small liquefied gas tank. The problem is that this kind of coffee contains a large proportion of coffee grounds, and you can't drink it after only a few mouthfuls.

9. Ethiopia: When drinking coffee, the host will put on neat national costumes, pour them into small porcelain cups without handles, and enjoy them with crispy wheat and local snacks.

10, Russia: When people drink coffee, they will choose black coffee with sugar and a small piece of lemon. This kind of coffee tastes rich and peaceful.