What are the effects and effects of "Wuyi tea" black tea? Taboos and precautions are attached

Black tea, which belongs to fully fermented tea, is refined by a series of technological processes, such as withering, kneading (cutting), fermentation, drying and so on. So what are the effects and effects of black tea? What are the taboos and precautions for drinking black tea?

I. the efficacy and function of black tea

1. Prevention of osteoporosis

Many middle-aged and elderly friends will get osteoporosis and bone aging in their old age, but drinking black tea will be very effective in preventing this from happening, because black tea also has a substance that destroys bone aging. If you want to get better results, you can add some lemon slices to the black tea to strengthen your bones.

2. Cancer prevention

It is well known that green tea can fight cancer, but recently, many scientists have found that black tea also has anti-cancer effects. Therefore, it is suggested that we can drink more black tea, especially the middle-aged and elderly, to play a role in cancer prevention.

3. Beneficial to the liver

Black tea contains a substance that can break down heavy metals, which is the tea polyphenols we often hear. And we all know that the liver is usually used for detoxification organs, in big cities, especially industrial cities, environmental pollution is serious, the liver will be overloaded every day. Black tea can help the liver to detoxify the human body, thus reducing the burden on the liver and protecting the liver.

4. Regain physical strength

It is also the tea polyphenols found in black tea, which can also help the brain stay awake and excited, a little bit like caffeine, but healthier without side effects. If you often feel tired, or if you have something important to stay up late and work overtime, you might as well make a cup of black tea, which can help you regain your strength and finish your work more quickly.

5. Promote blood circulation

Black tea contains a variety of elements, that is, lemon and potassium, the role of these two substances is to promote blood circulation to promote our cerebrovascular softening process, usually drink black tea brain blood vessels will be relatively soft, ruddy complexion. The speed of blood flow will be very fast, so drinking more black tea plays an important role in preventing cardiovascular and cerebrovascular diseases.

Taboos on drinking black tea

It is not suitable to drink black tea in special periods.

Drinking black tea during menstruation, especially strong tea, can induce or aggravate menstrual syndrome. Medical experts have found that people who drink tea are 2.4 times more likely to have menstrual catatonia than those who do not drink tea, and those who drink more than four cups of tea a day are three times more likely to have menstrual catatonia.

Do not drink black tea on an empty stomach

Drinking black tea on an empty stomach can dilute gastric juice, reduce digestive function, water absorption rate is high, resulting in a large number of bad components in tea into the blood, causing dizziness, palpitation, weakness of hands and feet and other symptoms.

Black tea is not suitable for drinking with a fever

Tea contains theophylline, which has the effect of raising body temperature. Drinking tea for patients with fever is tantamount to adding fuel to the fire.

Matters needing attention in drinking black tea

1. New tea is not the newer the better. Improper drinking method can easily harm the intestines and stomach. Because the new tea has just been picked and stored for a short time, it contains more unoxidized polyphenols, aldehydes and alcohols. These substances have little effect on healthy people, but they will stimulate gastrointestinal mucosa in patients with poor gastrointestinal function, especially in patients with chronic gastrointestinal inflammation. People with poor gastrointestinal function are more likely to induce stomach disease. Therefore, it is not appropriate to drink more new tea, let alone those that have been stored for less than half a month.

2. New tea also contains more caffeine, active alkaloids and a variety of aromatic substances, which will also excite people's central nervous system. Patients with neurasthenia, cardio-cerebrovascular diseases should drink appropriate amounts, and should not be drunk before going to bed or on an empty stomach.

3. Do not take medicine with tea; do not drink tea within 1 hour before and after taking the medicine. Ginseng and American ginseng should not be eaten with tea. Avoid drinking strong tea; do not drink tea before meals; avoid drinking tea immediately after meals; girls avoid drinking strong tea.