Hundreds years ago, Chinese started to drink tea for medical purpose and it was even recorded that in ancient times, Chinese doctor used tea to improve appetite and decrease headaches. Moreover, they encourage people use tea to clean their teeth after meals. As the development of the modern medicine, the benefits of drinking tea have been further validated, and more and more beneficial substances have been found. Moreover, tea helps reduce weight, improve digestion and prevent angiocardiopathy, many reasons of which are associated with polyphenols.
First, polyphenols help prevent tooth decay. People in southern China have a cup of tea after meals to fight bad breath and protect their teeth. Bacteria in the mouth cause tooth decay, as it creates acid which is fermented from food.
The polyphenols in tea help clean your teeth and get rid of the harmful substances. According to some studies, mice that were fed food rich in polyphenols, were less likely to suffer from tooth decay. Therefore, if you are too lazy to brush your teeth after eating, a cup of tea can be an acceptable alternative.
Second, polyphenols help protect your skin. They can help decompose active oxygen within your skin, preventing wrinkles as well as other skin problems. Active oxygen is due to exposure to ultraviolet rays, smoking, stress and fatty foods. When the oxygen reacts to fat and creates oxidized fat, a series of skin problems appear. Polyphenols can brighten the skin tone and decrease acnes, especially to those who have oily skin, washing face with tea water also helps control oil.
Third, polyphenols help with weight loss. In fact, Oolong tea works the best. One thing has to be cleared, tea itself can’t decompose fat, but it can help accelerate fat burning. A study was conducted among 102 obese people in China. They drank 300ml Oolong twice a day and cut off all other weight control methods. Six weeks later, their total fat percentage, including blood fat and subcutaneous fat, dropped.
Forth, polyphenols helps relieve diseases cause by aging. As mentioned, Oolong helps decrease the blood fat, which sees benefits in hyperlinpemia and hypertension. A study conducted in 1994 showed that among 68 participators, 75% of them had lowered their blood pressure after drinking Oolong for a period of time. Also the tea polyphenols help the immune system and may even help prevent cancer.
Fifth, tea can enhance brain functions and help reduce stress. Polyphenols and caffeine help stimulate the central nervous system. A cup of tea at noon helps drive tiredness away and improve work efficiency in the afternoon. Especially to those who don’t like coffee, some light green is an alternative option.
Sixth, polyphenols help detoxify heavy metal. As the development of modern industry, heavy metal pollution has become a severe environmental problem. Lead poisoning can cause harm to the immune system and kill healthy cells. According to some studies, polyphenols can absorb heavy metal effectively. Fermented teas like Oolong and black tea have a higher level of polyphenols. The scientists mixed together black tea water with the mercury solution, and found out the mercury started to settle over time.
Seventh, polyphenols can neutralize the substances that damage bone cells. According to a study conduced by the American College of Physicians following 497 males and 540 females for a ten year period, drinking tea helps prevent osteoporosis–adding some lemon to the water can enhance the effect. Moreover, in some areas of Southern China, older people mix tea in daily dishes to prevent osteoporosis.
Last, over the past decade, urban citizens have seen the risk of getting angiocardiopathy substantially increase. Polyphenols in tea can improve blood circulation and decrease blood pressure. Studies have shown that drinking four cups of tea everyday for six months can help lower both systolic and diastolic blood pressure, which the report said could reduce the risk of cardiovascular disease.
Modern medical scientists continue their exploration of the beneficial affect of polyphenols. Many scientists even cherish the hope that tea extract may help prevent and cure cancers because polyphenols help decompose active oxygen.