One cup of coffee a day can protect the health of retinal coffee.

Nowadays, many office workers often choose to use coffee to maintain their mental state in order to work better. In fact, it is good to drink coffee properly, but it will do some harm for a long time. Do you know that drinking coffee can protect the retina? Do you know the harm of drinking coffee to your health? Today, the editor brings you the best time to drink coffee. Interested friends come and have a look.

Drinking coffee protects the retina

Some people feel that drinking coffee water will bring people happiness, some people think that drinking coffee is a symbol of life, do you know the benefits of a cup of coffee every day?

In addition to absorbing some energy, food scientists say there are other benefits for drinking a cup of coffee a day: preventing vision degradation, glaucoma, aging and blindness caused by retinal deterioration caused by diabetes.

A cup of coffee a day protects the retina

Raw coffee, on average, contains only 1% caffeine, but it contains 7% to 9% chlorogenic acid (CLA), a powerful antioxidant that prevents retinal deterioration in mice, according to a study by Cornell University in the Journal of Agricultural and Food Chemistry.

The retina of each of us is a very thin layer of tissue, which is in the back wall of our eyes, and is used to connect with the material components of millions of photoreceptors and nerve cells. organize and receive relevant visual information in this way.

At the same time, it is also the most active tissue in metabolism, requiring high levels of oxygen, making it prone to oxidative stress. Lack of oxygen and free radical production can lead to tissue damage and visual impairment.

In this study, the eyes of the mice used nitric oxide, which produced oxidative stress and free radicals, leading to retinal degeneration, but the mice treated with chlorogenic acid had no retinal damage.

The study "is important in understanding functional foods, that is, natural foods are good for your health," said Chang Y.Lee, a food science professor and senior author of the study, as well as Holim Jang, a graduate student at Lee Lab.

Through the collaborative research of people in Lee lab, we can find that drinking a cup of coffee a day can stimulate the operation of our retina and always protect our eyes.

"Coffee is the most popular drink in the world and we know we can benefit from it," Lee said.

Previous studies have also shown that coffee can also reduce the risk of chronic diseases such as Parkinson's disease, such as prostate cancer, diabetes, Alzheimer's and age-related cognitive decline.

Since scientists have learned about the digestion and absorption of chlorogenic acid and its metabolites in the body, the next step in this study is to determine whether drinking coffee contributes to transmembrane movement, which we call the retinal barrier.

Whether drinking coffee can transmit chlorogenic acid to the retina, your doctor may recommend a reasonable way to prevent retinal damage every day. In addition, in further research in the future, it is necessary to further prove whether chlorogenic acid can be synthesized and made into eye drops.

Nine benefits of drinking coffee

1. Can prevent cancer and fight cancer.

The polyphenols in coffee are strong antioxidants. Drinking some coffee every day has a certain effect on cancer prevention and anti-cancer.

The polyphenols in coffee are strong antioxidants. Drinking some coffee every day has a certain effect on cancer prevention and anti-cancer.

Women who drank more than three cups of caffeinated coffee a day had a 21% lower risk of basal cell cancer than those who drank less than one cup a month. Caffeine can also inhibit tumor growth.

If women drank four or six cups of coffee a day, the incidence of breast cancer would be reduced by 25 percent, 70 percent, even for women with a family history of breast cancer. This is because coffee can reduce the production of carcinogenic estrogens.

2. Protect the liver

In recent years, there is growing evidence that coffee can reduce the risk of liver cirrhosis and liver cancer. Coffee is rich in polyphenols that also protect the liver. Patients with hepatitis are advised to drink some coffee every day, which is good for the repair of liver cells.

Drinking coffee can help people with heavy drinking, overweight, diabetes or iron overload reduce the risk of liver disease, but there is no evidence that coffee and tea can reduce the risk of chronic liver disease from fatty liver or viral hepatitis.

3. It can relieve exercise soreness.

Drinking two cups of coffee after exercise can help relieve muscle soreness. Drinking coffee can help people relieve muscle pain caused by excessive exercise, according to a study. Although caffeine has the effect of relieving exercise pain, it is often only effective for people who do not drink coffee very often.

4. Good for the skin

Coffee accelerates the metabolism of skin, accelerates the discharge of waste cutin and weakens the dark circles under the eyes caused by poor circulation; in addition, regular drinking coffee can keep skin cells full of vitality, prevent cell oxidation and anti-aging.

5. Prevention of depression

People who drink coffee regularly will feel happy and restless, and their mood will be improved.

People who drink coffee regularly will feel happy and restless, and their mood will be improved. When you are upset or depressed, having a cup of coffee can really calm your mind.

6. It can relieve alcohol.

Chlorogenic acid in coffee can prevent alcoholism. Drinking coffee after drinking alcohol will quickly oxidize the acetaldehyde converted from alcohol, decompose it into water and carbon dioxide and discharge it out of the body.

7. Drink coffee after a meal to nourish the stomach and aid digestion

Drinking coffee after a meal is good for stomach health. But on the other hand, if you drink coffee in the empty stomach, the secretion of gastric juice will damage the gastric mucosa, which in turn damage the health of the stomach.

People who love meat had better have a cup of coffee after dinner, which has a good effect on relieving grease and aiding digestion. In addition, the content of soluble dietary fiber in coffee is higher than that in orange juice, and caffeine can stimulate intestinal peristalsis. Therefore, drinking coffee has the effect of relieving constipation.

8. Radiation injury can be prevented

Radiation injury has become a prominent pollution and harm at present. Especially the radiation of household appliances: such as people who operate computers for a long time, microwave ovens, televisions at home, and so on. Especially for pregnant women (pregnant women's food) radiation has affected the health of the next generation (health food). Some studies do show that coffee may help prevent radiation damage.

9. Prevent cholelithiasis

Some studies have suggested that caffeinated coffee stimulates gallbladder contraction and reduces cholesterol, which is prone to gallstones. Drinking coffee can reduce people's risk of developing the most common and painful form of gallstone disease.

It seems that drinking coffee often has many benefits to health and can prevent and cure a variety of diseases. If done in the right way, it will be more beneficial to your health.

What are the health hazards of drinking coffee?

1. Heart

Caffeine acts on the heart in two ways: in addition to affecting the brain center that regulates the cardiovascular system, caffeine also acts directly on the heart.

Caffeine acts on the heart in two ways: in addition to affecting the brain center that regulates the cardiovascular system, caffeine also acts directly on the heart. High doses of caffeine can increase the heartbeat of people who do not tolerate caffeine by 10 to 20 beats per minute and may cause temporary arrhythmias in some people.

Therefore, moderate consumption of drinks containing caffeine (an average of up to 500 mg per day) does not significantly increase the risk of heart disease, but exceeding this dose may increase the risk of myocardial infarction.

two。 Kidney

It is a common occurrence for many people to go to the toilet after drinking coffee in the morning. This is because caffeine affects adenosine receptors in the kidneys, acting like diuretics. Caffeine may also slow the brain's release of an antidiuretic hormone that reduces urine production.

3. digestive system

The acid, oil and caffeine in coffee may stimulate gastric mucosa and promote gastric acid secretion. Long-term consumption of drinks containing caffeine can lead to stomach problems.

4. respiratory system

Caffeine and similar drugs have two effects on respiration. One is to increase the respiratory rate. In addition, caffeine relaxes the smooth muscle around the trachea, thus dilating the trachea and increasing breathing. However, caffeine can not be used as a drug to treat asthma.

5. Reproductive system

Women who drink coffee during pregnancy give birth to babies with lower birth weight.

Studies have shown that women who drink coffee during pregnancy give birth to babies with lower birth weight. Other studies have shown that taking caffeine (equivalent to drinking more than one cup of coffee a day) may significantly reduce women's chances of getting pregnant.

6. Eye

Caffeine constricts (narrows) the microvessels of the eyes, reduces the amount of nutrients that enter the cells of the eyes, and slows down the rate at which the eyes remove waste.

The best time to drink coffee

It is best not to choose after dinner, for fear it will affect your sleep. Although coffee is good for the body, it must also be moderate, with no more than 4 cups of about 800-1000cc a day. Drinking too much can be harmful for people who are prone to stress and anxiety-caffeine helps improve alertness, agility, memory and concentration.

But drinking more coffee than you are used to will produce the same dose of stimulants that you are used to, which can cause nervousness. For people with anxiety disorders, caffeine can worsen symptoms such as sweaty palms, palpitations and tinnitus.

Have coffee in the morning

Drinking coffee on an empty stomach in the morning can prevent and improve constipation. This is because the caffeine in coffee can effectively block intestinal relaxation information, which in turn promotes intestinal muscle contraction and peristaltic function.

In this way, the human body is easy to have a sense of defecation and defecate smoothly. But it should be noted that you can't rely too much on coffee to treat constipation. Because drinking too much coffee on an empty stomach can easily irritate the gastric mucosa and lead to stomach pain and discomfort.

Drink coffee before and after meals

Before or half an hour after a meal, this time can be said to be the best time of day to drink coffee. Therefore, drinking coffee at this time can promote the digestion of food in the stomach and reduce the work burden on the stomach.

And this will not adversely affect the normal function of the human body to absorb iron in food. In addition, people with iron deficiency anemia should avoid drinking coffee within half an hour before and after meals, so as not to aggravate iron deficiency.

Drink coffee before exercise

Mm who want to lose weight should pay attention that drinking coffee within half an hour before exercise is more conducive to the burning of body fat during exercise. As coffee enters the human body, it can speed up metabolism, thus increasing the amount of calories consumed by the body.

Most of the calories are converted from fat, so drinking coffee half an hour before exercise can reduce body fat content.

Most of the calories are converted from fat, so drinking coffee half an hour before exercise can reduce body fat content.

Drink coffee in a tired state

Many people will find that after a nap, the body is still tired, so you might as well drink a cup of coffee to refresh yourself and take away the fat attached to your intestines and stomach after lunch. Generally speaking, drinking a cup of coffee can be refreshing for four hours. Therefore, it is best not to drink coffee at night, so as not to affect sleep.

Conclusion: after reading the above introduction of the editor, you should already know that drinking coffee every day can protect the retina, and you should also know what harm drinking coffee can do to your health. are you eager to share what you have learned today about drinking coffee with your friends? Then what are you waiting for? hurry up.