With the growth of age and middle age, many people fall in love with drinking tea. They sit down from time to time, make a cup of tea, taste and understand life. Drinking tea has been sought after by many people. People think that drinking tea is much healthier than drinking coffee and has many benefits, so they are addicted, and it is uncomfortable not to drink a cup of tea every day. As everyone knows, not paying attention to the way of drinking tea will increase the risk of cancer! Pay attention to 2 o'clock!
Tea contains more than 450 kinds of ingredients beneficial to human body, which has good nutritional value and pharmacological effects, that is to say, drinking tea is beneficial to the body. So what are the specific benefits of tea to the human body?
1, refresh
In daily life, we often can't get enough sleep because of the pressure of work, and feel sleepy during the day. We can drink tea to refresh ourselves at this time. Tea contains caffeine, which can stimulate the central nervous system and increase the activity of cerebral cortex, thus playing a refreshing role.
Step 2 help digestion
Caffeine in tea can improve the secretion of gastric juice, which not only contributes to the digestion of food, but also plays a role in decomposing fat and losing weight. When you eat too much greasy food and feel uncomfortable in your stomach, drinking a few cups of tea can quickly and effectively relieve boredom and greasy.
Step 3 clear away heat and relieve summer heat
The high temperature in summer makes people fidgety, thirsty and heatstroke. Tea can clear away heat and relieve summer heat. Polyphenols, amino acids and other substances will stimulate saliva secretion, keep the mouth moist, accompanied by a cool feeling, and make people calm.
4. Inhibit cardiovascular diseases
Cardiovascular and cerebrovascular diseases are major diseases that threaten people's health, with high prevalence and dangerous attacks. Tea polyphenols in tea play an important role in fat metabolism, and reducing fat can effectively reduce the incidence of cardiovascular diseases such as hyperlipidemia. It can also inhibit plaque proliferation, reduce coagulation viscosity and inhibit atherosclerosis.
5. Prevention of Alzheimer's disease
The study found that people who drink tea regularly have a 50% lower risk of cognitive decline than those who seldom drink tea. Tea is rich in vitamin C and vitamin E, which has antioxidant effect, can delay aging and enhance physical fitness. Tea polyphenols can also effectively scavenge free radicals and make the human body younger.
Step 6 Prevent cancer
Tea polyphenols in tea have a strong astringent effect, can inhibit and kill pathogens and viruses, and can also effectively relieve inflammation and diarrhea. The study found that drinking green tea often can reduce the incidence of esophageal cancer by 50%, the risk of pancreatic cancer and rectal cancer by 40%, the risk of gastric cancer by 20% and the risk of colon cancer by 20%.
7. Prevention of dental caries
Tea polyphenols in tea can inhibit the activity of dental caries bacteria, thus reducing dental plaque. Tea also contains a small amount of fluorine, which can also prevent dental caries.
Various studies have proved that drinking tea is good for human body, especially the tea polyphenols in tea have multiple functions and can prevent many diseases. It is not surprising that more and more young people are joining the medical care team now.
There are also rumors that drinking tea will have certain disadvantages and even cause cancer. This is puzzling. Experimental studies have found that tea can effectively reduce the incidence of cancer. How can it cause cancer? Actually, there is no need to worry too much. Drinking tea will definitely do more harm than good to the human body. As long as you pay attention to the following two points, you will not increase the risk of cancer.
1, drink hot tea
Jiangsu and Zhejiang are high incidence areas of esophageal cancer. Research shows that people in this area prefer to drink hot tea. That is to say, esophageal cancer is related to drinking hot tea, which is harmful to human body.
When the temperature of tea exceeds 60 degrees, it is considered as a hot drink. If the water temperature is too high, it is easy to burn the esophagus and stimulate it repeatedly. After the esophagus is burned, the body will repair itself and copy a lot of DNA. When the number of copies increases, the probability of making mistakes will also increase, thus increasing the risk of gene mutation, that is, the risk of cancer will also increase.
Oral mucosa and esophageal mucosa are very fragile, and too high temperature will hurt them. In order to avoid the harm caused by this way of drinking tea, don't rush to drink it after making tea. When the water temperature drops below 60 degrees, it is not only beneficial to the body, but also makes the tea taste better and more mellow.
Step 2 drink strong tea
Tea is rich in nutrients that are beneficial to human body, but the more you drink it, the stronger the effect will be. Drinking strong tea or drinking too much tea is very harmful to your health. Strong tea can stimulate the stomach, affect digestion and absorption, and also affect the body's absorption of iron, which can easily lead to anemia. Excessive caffeine is also easy to cause osteoporosis, which is even more unfriendly to the elderly.
A proper amount of caffeine in tea can refresh the mind and help people study and work better. However, excessive caffeine stimulation will make the central nervous system in an excited state, which will gradually lead to tolerance, insomnia and irritability. It will also stimulate the cardiovascular system and sympathetic nerves, leading to arrhythmia, rapid heartbeat, chest tightness and other symptoms. The presence of caffeine stimulates the digestive tract mucosa, which may lead to mucosal lesions, leading to gastric cancer and esophageal cancer.
So drinking tea is still light, don't drink strong tea or hot tea, and don't drink too much tea in one day. Normal tea drinking will not cause harm to the body, and incorrect tea drinking is the cause of cancer risk in the body.
In addition to the above two bad ways of drinking tea will affect your health, there are still some places to pay attention to, which may also have adverse effects on your health.
1, don't drink tea when you have a fever.
Tea contains caffeine, which can stimulate nerves and accelerate blood circulation. When you have a fever, your body temperature rises, and the heat can't be emitted, so you need to dissipate heat urgently. Tannic acid contained in tea has astringent effect, which will affect the heat dissipation of human body. Under normal circumstances, there is not much problem. Once you have a fever, the consequences are very serious.
Don't smoke while drinking tea.
Caffeine in tea and nicotine in cigarettes can cause irritation to the stomach. If you smoke while drinking tea, it will cause double irritation to the stomach, damage the gastric mucosa and increase the risk of cancer.
3. Clean the tea set in time
Many cups that have been used for a long time will have tea stains and appear brown. This is because the air contains minerals and trace harmful heavy metal ions such as cadmium and mercury. When heating, with the increase of temperature, some substances will precipitate out, and these substances will enter the cup with the water for making tea. When tea leaves are exposed to the air, tea polyphenols in tea leaves will react with these substances to form tea scale.
These tea stains, that is, brown tea rust, contain harmful metals such as cadmium and are harmful to human health. Therefore, after drinking tea, you must clean the utensils in time to avoid harmful substances in the cup from causing harm to yourself after long-term storage. If it has been found that there are residual brown substances in the cup, and the old dirt can't be washed clean, it is best to drink tea in a clean vessel to ensure that there will be no harmful substances.
People who like tea not only drink tea when they are alone, but also make tea when guests come. Over time, like coffee, tobacco and alcohol, they will feel uncomfortable if they don't drink tea for a day, and they will become addicted to tea. People addicted to tea often need to drink tea every day to refresh themselves. If they don't drink, they will feel depressed all day. So how is the tea addiction formed? Do you want to quit or not
1, caffeine
Caffeine in tea is the chief culprit of tea addiction. Long-term consumption of foods containing caffeine can be addictive. Caffeine will inhibit adenosine receptors, and insufficient adenosine receptors will make the nervous system think that the human body needs more adenosine receptors, thus increasing. Adenosine promotes the transmission of neurotransmitters. Once the caffeinated food is stopped, the body will expect adenosine and become addicted to caffeine.
2. Dopamine
Dopamine is a kind of brain endocrine substance that is responsible for the brain's emotions and feelings, transmitting information such as pleasure, and is a factor that affects human emotions. Tea also contains amino acids, which can stimulate the brain to secrete dopamine, produce a sense of pleasure and make people excited and active. The human body will have a pleasant feeling of wanting more dopamine, and it will also expect to achieve its goal by drinking tea.
3. The aroma of tea
Tea itself has a unique fragrance, delicate and elegant, giving people a sense of pleasure. The aroma of tea is different from industrial processed products, and the pure natural aroma will make people feel relaxed and calm. When drinking tea, some people will pay more attention to the aroma of tea and smell that unique fragrance, which is unforgettable.
4. Overstimulation
The taste of strong tea is even more fascinating and addictive. It is said that it is easy to fade into the thick, and it is difficult to fade into the thick. The stronger the tea, the more exciting it is, and the more sensitive and unforgettable the taste buds and nerves of the human body are. In fact, tea addiction is a common phenomenon, and there is no need to worry a lot. It is more necessary to let nature take its course and keep an optimistic attitude.
Tea is one of the three health drinks in the world, which is beneficial to human health. However, you should master the degree of drinking tea. Choose the right tea variety, shade and temperature according to your physical condition, and enjoy the fun of drinking tea. If you are addicted to tea, it is impossible. Excessive drinking tea will still damage your health, and even be life-threatening.
1, the brain is overexcited
People who are addicted to tea drink a lot of tea every day, and the substances in tea make the brain excessively excited. Once you don't drink tea and take caffeine, amino acids and other substances, you will lose concentration and lack energy in your work and life. Drinking a lot of tea leads to insomnia and no spirit during the day. You can only refresh yourself by drinking tea, which is a vicious circle and makes tea addiction even greater. In the long run, the energy loss of the body is huge, which is harmful to health.
2. Excessive burden on the spleen and stomach
In addition to the brain will be too excited and consume energy accidents, the spleen and stomach will also be greatly damaged. Excessive stimulation makes the spleen and stomach overburdened, which will induce indigestion for a long time and even affect the detoxification function.
Excessive drinking of tea is also harmful, and we must not treat it lightly. When you find yourself addicted to tea, you can consciously control your tea intake instead of letting yourself drink more and more every day. You can slowly reduce the frequency and quantity of drinking tea and control it bit by bit to prevent yourself from becoming more and more addicted.
Tea culture is a unique culture in China. Today, many people have forgotten its unique charm, just drinking tea rudely to show their taste, and have no idea of its essence. Drinking tea has many benefits to the human body, which can effectively prevent various diseases, refresh the mind with tea in daily life, improve work efficiency, face life calmly and enhance happiness.
However, the incorrect way of drinking tea will be counterproductive, but it will increase the risk of cancer. There are more and more people who want to drink tea, and I hope more people will know about tea, its advantages and disadvantages, and always pay attention to it in daily life, and don't do anything harmful to the body.