Black tea is very common in life. In summer, people like to drink lemon black tea to relieve summer heat, while in autumn and winter, they drink rose black tea to beautify and warm themselves. So what's the advantage of drinking black tea often? Why do people all over the world like to drink black tea? Let's check the efficacy and side effects of Guizhou black tea with Xiaobian.
Effect and function of black tea:
Prevention of osteoporosis
Many middle-aged and old friends will have osteoporosis and bone aging in their later years, but drinking black tea will effectively prevent this, because there is also a substance that destroys bone aging in black tea. If you want to get better results, you can add some lemon slices to black tea, which will strengthen your bones.
Prevent cancer
Green tea is known to fight cancer, but recently many scientists have found that black tea has the same anti-cancer effect. Therefore, it is suggested that you can drink more black tea, especially for the middle-aged and the elderly, to prevent cancer.
Good for liver
Black tea contains a substance that can decompose heavy metals, which is known as tea polyphenols. As we all know, liver is an organ used for detoxification at ordinary times. In large cities, especially in industrialized cities, the environment is seriously polluted, and the liver is overloaded every day. Black tea can help the liver to detoxify, so as to reduce the burden of the liver and protect the liver.
pick up
It is also the tea polyphenol contained in black tea, which can help the brain keep awake and excited. It has a similar effect to caffeine, but it is healthier without side effects. If you often feel tired, or have important things to stay up late to work overtime, you may as well make a cup of black tea, which can help you recover physical strength and finish the work faster.
stimulate the circulation of blood
There are many elements in black tea. Lemon and potassium are two substances that promote blood circulation and promote the process of cardiovascular softening of our cerebrovascular system. People who drink black tea usually have soft cardiovascular system and ruddy complexion. The speed of blood flow will be very fast, so drinking more black tea has a great effect on the prevention of cardiovascular and cerebrovascular diseases.
Taboo of drinking black tea:
No black tea in special period
Drinking black tea during menstruation, especially strong tea, can induce or aggravate menstrual syndrome. Medical experts have found that compared with those who don't drink tea, those who have the habit of drinking tea are 2.4 times more likely to have menstrual tension, and those who drink more than 4 cups of tea every day are 3 times more likely to have menstrual tension.
Don't drink black tea on an empty stomach
Drinking black tea on an empty stomach can dilute the gastric juice, reduce the digestive function, and increase the absorption rate of water, resulting in a large number of bad components in the tea into the blood, causing dizziness, panic, weakness of hands and feet and other symptoms.
Black tea is not suitable for fever
Tea contains theophylline, which has the effect of raising body temperature. Drinking tea for feverish patients is just like adding fuel to the fire.