The efficacy and function of drinking black tea. Black tea is one of the common teas, which is rich in nutrition and widely used. It has many effects and functions on human body and is suitable for health preservation. Drinking black tea properly is good for health. Let me introduce it to you, and the efficacy and function of drinking black tea.

Efficacy and function of drinking black tea 1 efficacy of black tea

1, diuretic effect of black tea

Black tea can increase the blood flow of kidney, improve the pass rate of glomerulus, and also expand the absorption rate of water by renal microvessels and factor tubules, thus contributing to brightening. This is because black tea contains caffeine and aromatic substances. This can help the body excrete lactic acid, uric acid, excessive salt, harmful substances and so on. Can be combined with nephritis edema caused by heart disease.

2. Anti-inflammatory and bactericidal effects of black tea

Polyphenols in black tea have anti-inflammatory effects. Experiments show that catechins can combine with unicellular bacteria to coagulate and precipitate protein, thus inhibiting and eliminating pathogenic bacteria. Therefore, for patients with bacillary dysentery and food poisoning, drinking black tea is quite beneficial, and strong tea is also commonly used by the people to smear wounds, bedsores and athlete's foot.

3. Detoxification of black tea

Tea polyphenols contained in black tea can adsorb heavy metals and alkaloids in the body and precipitate and decompose, which is a very good thing for modern people who are often polluted by drinking water and videos.

4, black tea refreshing effect.

Through medical experiments, it is found that caffeine in black tea stimulates the cerebral cortex, stimulates the nerve center, and promotes the refreshing and concentration of thinking, thus making the thinking response more acute and enhancing memory; It also has an exciting effect on the vascular system and the heart, strengthens the heartbeat, thus accelerating blood circulation to facilitate metabolism, and at the same time promoting sweating and diuresis, so as to accelerate the excretion of old and waste substances such as lactic acid (a substance that makes muscles feel tired) in the body and achieve the effect of eliminating fatigue.

5, black tea has the effect of clearing away heat.

Drinking black tea in summer can relieve cough and summer heat. Because of tea polyphenols, sugars, amino acids, pectin and so on. What is contained in tea can react chemically with saliva, stimulate saliva secretion and make the mouth moist. Produce a coolness. Moreover, caffeine controls the body temperature center of hypothalamus and regulates body temperature. It also stimulates the kidneys to promote the excretion of heat and dirt and maintain the physiological balance in the body.

In addition, black tea also has the functions of preventing caries, invigorating stomach and moistening intestines, helping digestion, delaying aging, lowering blood sugar, lowering blood pressure, lowering blood fat, resisting cancer and radiation. Black tea is also an excellent sports drink. In addition to relieving summer heat, quenching thirst and replenishing water, if you drink it before sports (such as marathon running) that require physical strength and endurance, because caffeine in tea has a refreshing effect, it can promote the body to burn fat to supply heat energy while retaining liver vinegar during sports, so people's endurance is stronger.

Function of black tea

During the processing of black tea, a chemical reaction centered on the oxidation of tea polyphenols occurred. The chemical composition of fresh leaves changed greatly, and tea polyphenols decreased by more than 90%, resulting in new components such as theaflavins and thearubigins.

On May 3, 2002, the American Medical Association published a survey of 497 men and 540 women who had been 10 years. It has been pointed out that people who drink black tea have strong bones, and polyphenols in black tea (also found in green tea) have the activity of inhibiting substances that destroy bone cells. The contents of polyphenols in various foods are as follows: black tea-17.4, green tea -6544.

The osaka city university experiment in Japan pointed out that after drinking black tea 1 hour, the blood flow velocity of the heart increased, which confirmed that black tea had a strong role in preventing and treating myocardial infarction.

American magazines report that black tea has stronger anti-aging effect than garlic, broccoli and carrots.

Health care: Black tea can help digestion, stimulate appetite, induce diuresis, eliminate edema and enhance myocardial function.

Disease prevention: black tea has strong antibacterial ability. Gargling with black tea can prevent colds caused by viral diseases, prevent tooth decay and food poisoning, and reduce blood sugar and hypertension.

The efficacy and function of drinking black tea. Drinking black tea helps to lose weight.

Black tea is a common kind of tea. Drinking black tea often can play a certain role in losing weight, especially one hour before meals. Drinking black tea can make people feel full, thus reducing their appetite when eating, thus achieving the purpose of losing weight. You can also drink black tea about an hour after a meal, because drinking black tea at this time can make people's stomach digest and absorb better, which is helpful for stomach digestion and peristalsis.

Therefore, people who want to lose weight can drink black tea before meals and one hour after meals, which can play a good role in losing weight. In addition, people should eat more fresh fruits and vegetables, eat less spicy and greasy food, especially high-fat and high-calorie food, and do more exercise, so as to achieve better weight loss effect.

Second, drinking black tea can induce diuresis.

Because there are some substances in black tea that can accelerate the blood circulation of human kidneys and improve the filtration ability of human glomeruli, it can play a certain diuretic role. If the body drinks a lot of water, but it doesn't feel like urination, then you can drink more black tea, which can play a diuretic role. Urine is actually a way to help the body get rid of waste and rubbish, so you should pay attention if you urinate less often.

Third, drinking black tea can relieve fatigue.

In life, many people feel tired when they do one thing. Some people will choose to drink coffee to refresh themselves, but in fact they can drink black tea at this time, because black tea can not only make people more excited, but also make their thinking more agile. Some substances in black tea can promote the metabolism of the body, so that some fatigue factors in the body can be excreted more quickly. At the same time, drinking black tea is less irritating to the stomach, and people with bad stomachs can also drink black tea, but try to drink black tea after meals.

The efficacy and function of drinking black tea 3 The benefits of drinking black tea

1 has the effect of removing spots.

Black tea contains a lot of tea yellow and tea red, which can eliminate active oxygen in the body. If the active oxygen in the human body increases, it will lead to various age spots and melanin on the face and body. Women drinking black tea can kill active oxygen in the body, reduce the appearance of senile plaque, and achieve the effect of beauty beauty.

2. It has the function of enhancing the blood circulation of the heart.

Black tea is rich in flavor and contains a lot of potassium, which can improve the blood circulation of the heart. At the same time, it also contains flavonoids, which can effectively predict heart disease. People with a family history of heart disease can drink a little black tea properly, which can play a role in heart health care.

3. It has antibacterial effect.

Black tea contains a lot of red tea polyphenols, which can kill Trichophyton albicans. Although I often wash my feet and pay great attention to the maintenance of my feet, many female friends still have symptoms of beriberi. The athlete's foot can be removed by introducing the soaked black tea residue into warm water of about 60 degrees and sticking to soaking feet with black tea residue.

Suitable for people who drink black tea

1, people with poor resistance are suitable for drinking black tea, which has strong antibacterial ability. Drinking black tea can prevent colds caused by viral diseases and prevent tooth decay.

2, people with poor stomach are suitable for drinking black tea, black tea can help digestion of the stomach, promote appetite, nourish the stomach, and also have a certain effect on treating ulcers.

3, the elderly are suitable for drinking black tea. Stroke and heart disease are high-risk diseases for the elderly. Drinking black tea can also reduce stroke and heart attack.

People who like greasy fried food are suitable for drinking black tea. Black tea can get rid of stagnation, help digestion, and at the same time, it also has the functions of promoting fluid production to quench thirst, clearing the heart and refreshing.

5. People who lack calcium and iron are also suitable for drinking black tea. Drinking black tea can not only cool the liver and gallbladder, but also warm the heart and lungs and prevent osteoporosis.