10 Health Benefits of Green Tea - Since 500 years ago humans have enjoyed steeping tea leaves in boiling water. Tea ( camellia sinensis ) is the most widely consumed beverage in the world after freshwater. Modern medical research shows many amazing health benefits of green.
Most of the benefits associated with green tea polyphenols, a powerful antioxidant phytochemical that gives the bitter taste of green tea. There are four primary polyphenols found in tea leaves are epigallocatechin gallate (EGCG), also epigallocatechin (EGC), and also epicatechin gallate which (ECG) and epicatechin (EC). More recently, researchers have focused on amino acid called theanine tea. Theanine (also called L-theanine) is the main amino acid in green tea leaves, which gives a distinctive flavor tea.
1. Reduce the risk of colorectal cancer and heart disease
With drinking green tea regularly can significantly and reduce the risk of death from colorectal cancer and heart disease. Research in Japan proves, when we consume 7 cups of green tea every day will be very beneficial for our health in general. The study has evaluated 12,251 people that aged 65 to 84 years old. The researchers proved that people who drank at least seven cups per day lowered the risk of death from heart disease up to 75 %, compared to those who drank less than a cup of green tea per day. In addition, the risk of colorectal cancer will be lower approximately 31 % in those who consumed 7 cups of green tea every day.
Colorectal cancer and heart disease can be overcome by frequent consumption of green tea, this is because green tea is rich in polyphenols which is about 30-40%, it is better if compare with black tea that only 3-10%.
2. Help treat bladder cancer and esophageal cancer
According to a study published in the official journal of the U.S. National Cancer Institute has shown that consuming green tea can reduces the risk of esophageal cancer up to 60 %. Another study also concluded that green tea is very helpful in treating bladder cancer.
3. Green tea can
lower blood pressure and cholesterol
A study in Japan said that hypertension can be overcome by theanine that contained in green tea, but it will not affect our normal blood pressure. The researchers have also found other benefits of theanine which can lower cholesterol levels, and can also increase the good cholesterol, also be able to prevent the good cholesterol transform to bad cholesterol because of oxidation.
4. Health benefits of green tea that can reduce stress and depression
Green tea is known contained a little amounts of caffeine. Stimulating effects of caffeine on the nervous system is balanced by theanine. Theanine creates a sense of relaxation in the 30 to 40 minutes after consumption of green tea, which can stimulate brain activity to produce alpha waves. This will create mental alertness and relaxation, which is similar to the relaxation that we get through meditation. Theanine affects the chemistry in the brain to increase the neurotransmitter, and also serotonin, and dopamine.
5. Green tea can increase the concentration
Theanine in green tea may also increase the ability to concentrate, learn, and remember. That is the reason why scholars and monks often consume tea to aid in learning and meditation. In 2007 there was a study that showed that green tea work synergistically with caffeine, this will stimulate activity in brain cells. The researchers have also said that if 100 milligrams of theanine in the 4 cups of tea alone, is enough to make people better at concentrating.
6. Health benefits of green tea that can improve the quality of life of cancer patients
A study in 2002 found that the quality of life of cancer patients could be helped by consuming green tea because theanin can create a relaxing, but it can be done by optimizing the effectiveness of anti-cancer medicines. Theanine also can optimize the anti-cancer medicines in the tumor, while reducing the levels of these medicines on normal tissues of the body still. Therefore, theanine would reduce the side effects that can increase the effectiveness of treatment. Tumor growth can also be inhibited by theanine. A survey showed that green tea is very popular, and studies in Japan have suggested that consumption of green tea has reduced the incidence of breast, prostate, lung, liver, and also stomach, pancreas, and throat.
7. The immune system can be strengthened by consuming green tea
Harvard Medical School conducted a study and showed that theanine in green tea can boost immunity and against influenza disease, and can also increase a strong immune response.
8. Help to weight loss
According to a study conducted in 2004, theanine could help you lose weight. It has been tested on animals, that is theanine can increase metabolism, reduce body fat, triglycerides (blood fats) and lose weight.
9. Green tea can strengthen bones
A study in Hong Kong has shown that green tea is beneficial to bone. The researchers found that one of the main components of green tea (epigallocatechin), which can stimulate enzymes that promote bone growth. EGC or Epigallocatechin also increase mineralization processes in bone cells, it will be able to strengthen bones and reduce the activity of osteoclasts that can weaken bones.
10. Reduce the risk of colon cancer in women
The researchers also found that women who consumed 5 cups of green tea a day may reduce the risk of developing colon cancer, which is about 20 %. They also say that the components in green tea can fight bacteria that associated with colon cancer. Benefits of green tea as an anti-colon cancer, does not apply to men.
Other studies have shown that green tea is beneficial for diabetes, stress, and also cavities, rheumatic disease, as well as protection against UV radiation and viral infection.
How much green tea should you drink?
After knowing so many health benefits of green tea, you may want to immediately prove it. But how many cups a day should you drink? Most studies have found
health benefits of green tea in those who drank three to 10 cups of green sehari.Teh, even when consumed in large quantities, giving very few side effects. Staining of teeth is probably the most common problem. Using a toothpaste containing bicarbonate and hydrogen peroxide can prevent this.
Side effects most associated with green tea caffeine. Caffeine in green tea can cause problems such as increased heart rate or insomnia in some people. In addition, caffeine is also found in breast milk and can cross the placenta, which means that pregnant and lactating women may need to avoid green tea. Caffeine can also interact with some medicines. Green tea should not be mixed with adenosine, blood thinners, chemotherapy, and also aspirin, benzodiazepines, and beta-blockers, clozapine, ephedrine, oral contraceptives, and also lithium, monoamine oxidase inhibitors, and phenylpropanolamine. You should talk with your doctor for interactions with other medications.
Green tea also contains tannins, which may limit the absorption of iron from fruits or vegetables. Brewed tea with lemon (which is rich in vitamin C) to overcome this.
How you have to prepare tea?
You will get most of the health benefits of green tea to brew into hot water and silence him for three to five minutes to pull out its catechins ( " brewed tea " ). Green tea is made ?? From older leaves tend to have more catechins. Green tea catechins have less dye than "brewed tea", while the green tea catechin extract capsules give a similar amount to the " brewed tea ". Typically, you need at least 250 mg - 400 mg per day of green tea polyphenols, equivalent to three cups.
Thus some explanations about the Amazing Top 10
Health Benefits of Green Tea, may be useful. by Health Articles