In addition to oil, the oldest and most traded commodity in the world is coffee. According to statistics from the International Coffee Organization, 400 billion cups of coffee are consumed in the world every year. Every second, 14,000 cups of coffee are drunk in the world. Coffee has become the second largest beverage in the world after water.
As the pace of life accelerates, Chinese people’s acceptance of coffee has also increased greatly. For “coffee lovers”, you have to have a cup of coffee in the morning and afternoon to get a sigh of relief and start a whole day of work.
A cup of coffee changes 7 organs
As one of the important components of coffee, caffeine is a white crystalline compound that also exists in cocoa and tea. After drinking coffee, caffeine can reach various tissues in the body within 5 minutes.
An article in the New England Journal of Medicine summarizes the relationship between coffee, caffeine and health, and suggests the effect of coffee on the function of various organs in the body.
1. The brain
It can reduce fatigue, eliminate sleepiness, and keep the brain in a higher alert state, which is manifested as mental excitement and active thinking.
This effect varies greatly among different people. Human genes such as CYP1A2, PDSS2, etc., encode enzymes that can affect the metabolism of caffeine. As a result, some people are still sleepy after drinking coffee, and some people drink coffee in the morning and cannot sleep at night.
2. Stomach
Stimulate gastric acid secretion and promote digestion.
3. The intestine
Promote intestinal peristalsis and help defecation.
4. Heart
It may increase blood pressure in a short time, but controlling the amount to 1 to 2 cups a day will not increase the risk of cardiovascular disease.
5.Kidney
Diuretic effect can eliminate edema.
6. Lung
May improve lung function.
7. Reproductive system
Excessive coffee may increase the risk of spontaneous abortion in pregnant women.
Coffee reduces the risk of 6 chronic diseases
Coffee is also rich in various nutrients such as protein, fat, niacin, tannins, alkaloids, potassium, and dietary fiber. Drinking regularly and moderately every day will help improve and prevent many diseases.
Prevent cardiovascular disease
Drinking coffee is negatively correlated with the risk of death from cardiovascular and cerebrovascular diseases such as coronary heart disease and stroke. Caffeine can improve the systolic function of the left ventricle and the blood flow of the coronary arteries, so drinking coffee in moderation can protect the heart.
Researchers from South Korea have studied 25,000 subjects and found that people who drink 3 to 5 cups (about 200 ml per cup) of coffee a day have a lower risk of cardiovascular disease.
Reduce the risk of type 2 diabetes
The content of soluble dietary fiber in coffee is higher than orange juice, and caffeine can also stimulate intestinal peristalsis and prevent overweight. Drinking coffee regularly can help reduce the risk of type 2 diabetes, except for high-calorie coffee-containing beverages.
Prevent multiple cancers
People who drink coffee in moderation every day may have a lower risk of prostate cancer, endometrial cancer, colon cancer, esophageal cancer, and liver cancer.
Reduce liver abnormalities
The polyphenols in coffee can improve body fat balance, reduce oxidative stress, and prevent fatty liver and liver fibrosis. Helps improve liver health and reduces the risk of abnormal liver function indicators, liver fibrosis and cirrhosis.
Prevent gallstone formation
Drinking coffee can help inhibit gallbladder fluid absorption and stimulate gallbladder contraction, thereby preventing the formation of gallstones.
Prevent neurological diseases
Caffeine mainly acts on the central nervous system, increasing dopamine levels to increase comfort and improve mood. Studies have found that drinking coffee can reduce the risk of depression and suicide.
Coffee has a health threshold
Regarding the amount of coffee consumed, the currently widely accepted recommendation in nutrition and medicine is: healthy adults drink two or three cups a day, the benefits outweigh the risks.
The daily caffeine intake of healthy people is best controlled at around 250 mg, with an upper limit of 400 mg.
Everyone has different sensitivity to coffee. Generally, drinking more than 6 cups of coffee a day may cause symptoms such as insomnia, nervousness, stomach upset, rapid heart rate and breathing.
Choose pure coffee
Italian, American, and cold brew coffees do not add anything else and are suitable for most people.
Latte and cappuccino are made by blending coffee and milk. They taste better and are relatively healthy.
Mocha, caramel macchiato, white coffee, etc. are usually added with chocolate, cream or sugar, and the energy is much higher.
Morning coffee
It is best to drink coffee after breakfast and lunch. American neuroscientists have calculated that the best time to drink coffee is between 9:30 and 11:30 in the morning.
Do not drink coffee on an empty stomach, or after dinner, or drink coffee when staying up late, so as not to affect sleep quality.
Special people drink like this
Patients with high blood pressure should not get up early to drink coffee to avoid rapid rise in blood pressure. Patients with osteoporosis drink no more than 3 cups of coffee a day.
Caffeine can increase the catecholamine levels in the blood of pregnant women and fetuses, causing uterine placental vasoconstriction and hypoxia. It is prudent to limit your caffeine intake to 200 mg per day, that is, drink no more than 2 cups of coffee.
Children and teenagers, it is best not to drink coffee
Finally, if you don’t have the habit of drinking coffee, you don’t need to drink it for health or fashion.
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