The chemical secrets hidden in a cup of mellow coffee that you may not know

Preface:

Coffee is very common in people's lives. Some people are willing to taste coffee, while others cannot accept its bitterness. In addition to its taste, more importantly, is it healthy? According to a study by the United Nations, one-third of the acrylamide, a carcinogen, consumed daily by coffee drinkers comes from coffee beans.

After studying the cases of 3,153 patients, Italian scientists found that drinking three cups of coffee a day can reduce the risk of liver cancer. In addition, coffee helps the liver regenerate and reduces the risk of cirrhosis. Seeing this, some people will inadvertently ask, can coffee be drunk? Today, the editor will talk to you about coffee.

1. Ingredients in Coffe

When it comes to coffee, the first thing that comes to mind is definitely caffeine, which is a xanthine alkaloid compound with a particularly strong bitter taste. Its chemical structure is similar to adenosine, so when adenosine binds to adenosine receptors in the human body, it will give the body a temporary excitement. We all know that caffeine can make people excited, so we often hear people say that drinking a cup of coffee can refresh you if you are not energetic. Is this good or bad?

Research in the past 20 years has shown that caffeine can stimulate and excite the central nervous system, respiratory system, heart and skeletal muscles, can be used to make long-acting analgesics, and can fight drowsiness, colds, asthma and edema. A moderate amount of caffeine can also reduce muscle fatigue and promote the secretion of digestive juices. Because it promotes kidney function, has a diuretic effect, and helps the body excrete excess sodium ions from the body. But excessive intake can lead to caffeine poisoning. Its side effects can be addictive insomnia, tension and increased blood pressure.

2. Carcinogenic or anti-cancer

According to a famous nutritionist, the claim that drinking coffee causes cancer is because acrylamide has been detected in instant coffee, which may cause cancer in humans and has a potential risk of cancer. The anti-cancer explanation is that caffeine contains a certain amount of caffeine, which has certain anti-cancer effects.

Research results from the American Coffee Research Institute show that coffee contains four times more anti-dementia substances (including vitamin E, vitamin C, carotene, etc.) than tea. Coffee beans are more resistant to dementia after being roasted.

3. People who absolutely cannot drink coffee

First of all, there are some people who absolutely cannot drink coffee:

1. Suffering from diseases such as hypertension, coronary heart disease, arteriosclerosis, etc. - Long-term or excessive drinking of coffee can cause cardiovascular diseases.

2. Elderly women - coffee can reduce calcium and cause osteoporosis. After menopause, women need ten times more calcium every day.

3. Patients with stomach problems: drinking too much coffee can worsen stomach problems.

4. Pregnant women - drinking too much coffee can cause fetal malformation or miscarriage.

5. People who are deficient in vitamin B1 - Vitamin B1 can maintain the balance and stability of the nervous system, while coffee has a destructive effect on it.

4. How to drink coffee in moderation?

Researchers at Harvard University in the United States found that men who drink two to three cups of coffee a day have a lower than 40% chance of getting gallstones. However, excessive consumption is absolutely not allowed. Generally speaking, consuming 500 to 600 mg of caffeine (about 4 to 7 cups of coffee) a day will have a negative impact on health. Medical research has confirmed that drinking three cups of coffee continuously in a short period of time (within 1-2 hours) may cause emotional tension, anxiety, shortness of breath, etc.; drinking more than 10 cups may cause some poisoning phenomena, such as tinnitus, nonsense, blurred vision, arrhythmia, shortness of breath, muscle tension and muscle tremors, etc.; drinking more than 100 cups continuously may lead to death.

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