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The most beneficial substance in coffee is caffeine. In various ways of drinking coffee, drinking pure black coffee can best retain beneficial ingredients and is most beneficial to health. Here are some of its functions:
Refreshing caffeine stimulates the central nervous system to refresh the mind and improve work efficiency;
Caffeine stimulates gastrointestinal secretion of gastric acid and prevents gastroptosis.
Diuretic and dehumidifying caffeine can increase urine volume and promote renal function.
Linoleic acid, which has the function of promoting blood circulation and removing blood stasis, contained in coffee can hemolyze and prevent thrombosis, enhance vasoconstriction and reduce the probability of stroke.
Caffeine can inhibit parasympathetic nerve and reduce the attack of asthma.
Caffeine for removing odor contains tannin, which has a strong adsorption capacity for taste. If your home has just been renovated, make a pot of coffee indoors or put it indoors with cooked coffee beans, and the odor will be removed quickly.
Coffee can lose weight and resist aging. Lightly roasted coffee contains more caffeine, which is beneficial to lose weight. Black coffee has antioxidant effect, which is helpful for anti-cancer and anti-aging.
Drinking coffee in moderation is good for human health. Usually, the human body can consume nearly 500 to 600 milligrams of caffeine every day, which is equivalent to about 5 cups of coffee. In this range, there will be no side effects. But the metabolism of pregnant women is a little slow, so drink less. Coffee is an indispensable healthy drink for us.
Coffee and health
When it comes to coffee, people think of caffeine, which is a mild stimulant in coffee. It can improve the sensitivity and attention of human body, accelerate the metabolism of human body, and improve the mental state and physical quality of human body. At present, caffeine has been found in about 60 kinds of plants, of which tea and coffee are the most well known.
What kind of people are not suitable for drinking coffee
Coffee contains caffeine, and whether it reacts to caffeine varies from person to person. For example, some people are allergic to pollen, while others are not suitable for eating seafood. And these two situations, for most people like you and me, will not have any impact. As for how much coffee to drink every day, in some coffee-consuming countries, people consume about 250-600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body. So you can drink 4- 10 cups of instant coffee every day.
What effect does drinking coffee have on health?
Your main concern is whether the caffeine contained in coffee has an impact on health. In fact, caffeine is a mild stimulant in coffee, which can improve human sensitivity and attention, accelerate human metabolism, and improve human mental state and physical quality. At present, caffeine has been found in about 60 kinds of plants, of which tea and coffee are the most well known. In some coffee-consuming countries, people consume about 250-600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body.
You can't drink too much coffee every day.
People often ask, how much coffee is excessive? In some coffee-consuming countries, people consume about 250 to 600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body. Because the caffeine content in a cup of coffee (150ml) is generally:
-Ground coffee: about 80-90 ml.
—— Instant coffee: about 60ml.
In some coffee-consuming countries, people consume about 250-600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body. The caffeine content of a cup of instant coffee (about 150 ml) is generally about 60 mg, so drinking 4- 10 cups of instant coffee every day will not be excessive.
What are the advantages and disadvantages of drinking coffee?
1. Coffee contains some nutrients. Nicotinic acid in coffee contains vitamin B, and roasted coffee beans have higher content. 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 losing weight.
3. Coffee has the function of relieving alcoholism. Drinking coffee after drinking will quickly oxidize acetaldehyde converted by alcohol, decompose it into water and carbon dioxide and excrete it.
4. Coffee can relieve fatigue. To eliminate fatigue, we must supplement nutrition, rest and sleep, and promote metabolic functions, and coffee has these functions.
Three cups of coffee a day can prevent gallstones. For caffeinated coffee, it can stimulate gallbladder contraction and reduce cholesterol which is easy to form gallstones in bile. 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 the prominent pollution at present. Baba's Indian atomic researchers reached this conclusion 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 the average person absorbs 300 mg (about 3 cups of brewed coffee) every day, which will have a good influence on a person's alertness and mood.
Disadvantages:
1. Make trouble when you are nervous.
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 cause tension. For people with anxiety tendency, caffeine can aggravate the symptoms of sweating, palpitation and tinnitus.
Aggravate hypertension
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.
In addition, 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 can cause cardiovascular diseases.
Older women-coffee can reduce calcium and cause osteoporosis. After menopause, women need to supplement ten times as much calcium every day.
Patients with stomach trouble-drinking too much coffee will make stomach trouble worse.
Pregnant women-drinking too much coffee can lead to fetal malformation or miscarriage.
Vitamin B 1 deficiency-vitamin B 1 can keep the balance and stability of the nervous system, and coffee can destroy it.
Cancer patients-drinking too much coffee is dangerous for normal people.
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