1 Drinking coffee can protect the cardiovascular system. After studying 25,000 subjects, researchers found that people who drink 3-5 cups (about 200ml per cup) of coffee every day have a lower risk of cardiovascular disease. A cancer research center said that people who drink 1 cup of coffee every day have a lower risk of death from stroke than those who don't drink coffee.

2. Drinking coffee can reduce the risk of cancer. A study in a magazine found that drinking coffee every day can reduce the risk of primary liver cancer (the most common type of liver cancer) by 40%. There are also studies that drinking coffee regularly can reduce the risk of ovarian cancer in women.

3. Drinking coffee can enhance memory. A nutritionist said that moderate intake of caffeine is good for both short-term memory and long-term memory, which helps to prevent cognitive decline.

4. Drinking coffee can promote blood circulation. Drinking coffee can improve heart function, relax blood vessels and promote blood circulation.

5. Drinking coffee can help digestion. Drinking coffee can help digestion and help the decomposition of fat.

6. Drinking coffee can prevent radiation damage. Researchers at the Atomic Research Center found that 70% of the experimental mice injected with caffeine were still alive after 25 days after receiving high-dose radiation that was generally lethal, while all the mice that were not injected died.

The disadvantages of coffee:

1, which leads to anesthesia. If a person who drinks coffee regularly is halved, it will cause symptoms such as headache, muscle pain, fatigue, inattention and nausea. Researchers suggest that coffee addiction should also be treated as a mental illness or drug addiction.

2. Drinking too much coffee can also lead to paralysis or impotence.

3. If you drink more than three cups of coffee at a time, you will experience emotional tension, anxiety and shortness of breath.

If you drink more than ten cups, it will cause poisoning, such as dizziness, tinnitus, rising blood pressure, blurred vision, rapid arrhythmia, and even neurological disorder and muscle tremor. The dose of caffeine poisoning is generally 0.5 ~1g.

Advantages of drinking black coffee to lose weight:

1, black coffee is an ideal drink for healthy weight loss.

2. The hydroxy acids, chromium and caffeine contained in black coffee can help you improve your metabolism by 30%.

3. Drinking 300mg black coffee before exercise can increase fat burning 107%.

4. Caffeine in black coffee can keep our brains awake and help control our appetite.

5. Drinking black coffee regularly will reduce the risk of type II diabetes and other diseases.

Excessive drinking of black coffee will affect your health and lose weight;

1, excessive drinking of black coffee will make you addicted, and even affect your mood, making you more excitable.

2. Drinking too much black coffee at one time will not only lead to an increase in blood sugar levels, but also lead to overeating, which will slow down the burning of fat and lead to more fat storage in the body.

Extended data

note:

Method of adding sugar to coffee. When adding sugar to coffee, the sugar can be scooped up with a coffee spoon and added directly into the cup; You can also use the sugar clip to clamp the cube on the close side of the coffee plate first, and then use the coffee spoon to add the cube to the cup. If the sugar cube is directly put into the cup with a sugar clip or hand, it may sometimes spill coffee, thus soiling clothes or tablecloths.

The usage of coffee spoon. The coffee spoon is specially used for stirring coffee, and it should be taken out when drinking coffee. Don't use a coffee spoon to spoon coffee slowly, and don't use a coffee spoon to mash the sugar cubes in the cup.

Coffee is too hot and cold. The freshly brewed coffee is too hot, so you can gently stir it in the cup with a coffee spoon to cool it, or wait for it to cool naturally before drinking. It is very rude to try to blow the coffee cold with your mouth.

How to use cups and saucers. The cups and saucers for holding coffee are all specially made. They should be placed on the front or right side of the drinker, and the cup ears should point to the right. When drinking coffee, you can hold the cup ear of coffee with your right hand, gently hold the coffee dish with your left hand, and slowly move it to your mouth to sip. It is not advisable to hold the cup full, swallow it with a big mouth, or bow down and go to the coffee cup. Don't make any noise when drinking coffee. When adding coffee, don't take the coffee cup off the coffee plate.

Coffee tasting method. There are shades of coffee, so you can't drink three or four cups in a row like tea or coke, and the proper amount of coffee cup is the best.

Taboo:

1, drink coffee on an empty stomach in the morning

Coffee contains more caffeine, which can stimulate gastric acid secretion and increase gastric acid concentration. At this time, the stomach is empty after a night's rest. Too much gastric acid can easily damage the gastric mucosa, causing stomach pain, heartburn and even nausea. In addition, drinking a lot of espresso on an empty stomach may also lead to discomfort such as accelerated heartbeat, chest tightness and palpitations. Moreover, coffee will accelerate the body's energy consumption, and drinking it on an empty stomach in the morning is likely to lead to hypoglycemia.

2, often drink instant coffee

The nutrient composition table of an instant coffee shows that the energy of a15g three-in-one instant coffee is 29 1 kilojoule (about 70 kilocalories), protein is 0.6g, fat is 2.4g, carbohydrate1.2g and sodium is 68mg.. If we drink 3 cups of instant coffee a day, the energy intake will reach more than110 of the energy we need every day.

In addition, the main components of non-dairy creamer are glucose syrup and hydrogenated vegetable oil, and hydrogenated vegetable oil contains trans fatty acids that are harmful to health, so it should be avoided to eat it frequently.

3. Drink freshly ground coffee with a lot of sugar.

In view of the fact that eating too much sugar may lead to overweight and obesity and dental caries, the World Health Organization (WHO) and the Dietary Guidelines for China Residents (20 16 Edition) suggest that the daily intake of added sugar should not exceed 50 grams, and it is better to control it below 25 grams. It is suggested not to add sugar or less sugar when drinking freshly ground coffee, learn to enjoy the fragrance of pure coffee, and also add some milk to enhance the fragrance.

4. Drink a lot of coffee when staying up late

Caffeine in coffee does have a refreshing effect, but drinking it in large quantities will speed up the metabolism in the body and accelerate the consumption of B vitamins. People who lack B vitamins are more likely to feel tired, so they will want to drink more coffee, which will form a vicious circle in the long run.

People's Daily Online-Drinking coffee often, do you know the advantages and disadvantages of coffee?