Green Tea

green tea Green Tea by Bobby Suharto

Apart from water, it is often argued that tea, evidently, is the most common beverage around the world. Research indicates that human beings consumed tea leaves steeped in the boiling water since 500,000 years ago. There are three main types of tea which are green, black, and oolong. It seems that tea ,apparently, is one of the Asian cultures, especially in China. Most people consume tea as their main the beverage. People of Asian countries, under normal circumstances, consume green tea and oolong tea. On the other hand, in United States, and in the United Kingdom, black tea is the most popular. In this article, I would like to provide some information regarding green tea. This traditional tea is made from unfermented leaves which contain polyphenols that are a very high concentration of powerful antioxidants. Polyphenols can neutralize free radicals which can damage tissues of the human body and can cause cell death. Green tea is able to reduce as well as prevent some of this damage.


Green tea is often consumed by countries such as India, China, Japan, and Thailand for decades. It is often used by the traditional Chinese and Indian medicine as stimulant, diuretic, astringent, and to keep the health of the hearth. Studies indicate evidence that green tea, indisputably, is beneficial as a way to reduce risks for many health conditions such as, atherosclerosis, high cholesterol, many kinds of cancer (bladder cancer, breast cancer, ovarian cancer, colorectal cancer, esophageal cancer, lung cancer, pancreatic cancer, prostate cancer, skin cancer, stomach cancer), inflammatory bowel disease, diabetes, liver disease, and possible even weight loss. Moreover, consuming the other kinds of tea also can increase the metabolic rate of human’s body, boost mental alertness (through caffeine), boost the immune system (through the antioxidant compounds in tea), lower chances of cognitive impairment, lower stress hormone levels, and can be a complementary therapy for HIV, promote recovering from bacterial infections, and as has been used even as an anti-venom to help with recovery from snake bite.3 types of tea

All of that kinds of tea (green, oolong, black) are processed from the leaves of the Camellia sinensis plant. It grows in Asia, especially in the eastern part, and in Africa. From these leaves, it could be processed into three different ways to make the three kinds of tea. The leaves of the tea are green at harvest. Then, tea leaves are exposed to the air which is called a fermentation process. If it is fully fermented, the leaves darken and become the black tea. However, green tea is produced from the unfermented leaves whereas the oolong tea is partially fermented. The longer fermentation process leads to lower polyphenol content, and the higher caffeine content. Therefore, green tea has the highest polyphenol concentration, whilst the black tea has the highest of caffeine.

Green tea isn't for everyone---people who have heart problems, stomach ulcers, psychological disorders, kidney disorders, pregnant as well as breastfeeding women should not consume the green tea without first consulting their physician. Owing to the fact that it does contain active substances that can cause the side effects, and may interact with other herbs, medications, or supplements. Due to containing caffeine, it is possible to cause the occurrence of insomnia, irritability, heat palpitation, dizziness, nausea, vomiting, headaches, and diarrhea when people consume an excessive amount of caffeine. Therefore, it is important to follow the recommend dosage for consuming those teas, especially when the individual has a particular health problem. The dosage of consuming green tea depends on the brand. Normally, 2-3 cups of green tea/ day (240-320mg polyphenols) or 300-400mg/day is safe.
black, green, oolong tea




the leaves of green tea preparing for fermentation process
The leaves of green tea Fermentation process

The process of making the green tea




Picture Source:

http://images.google.com/imgres?imgurl=http://prostatesecretsreport.com/green-tea-fights-prostate-cancer.jpg&imgrefurl=http://prostatesecretsreport.com/Green_Tea_Fights_Prostate_Cancer.html&usg=__kccsGgnn2wTl4fBs_CyApaA8JqE=&h=375&w=500&sz=204&hl=en&start=5&tbnid=caPkQIM6H-4INM:&tbnh=98&tbnw=130&prev=/images%3Fq%3Dgreen%2Btea%26gbv%3D2%26hl%3Den%26sa%3DG

http://www.ars.usda.gov/is/graphics/photos/sep03/k10694-1.htm
http://hojotea.com/img/b06_pho_023.jpg
http://www.healthhokkaido.com/files/Images/Article/green%20tea.bmp



Video Source:

http://www.youtube.com/watch?v=srL1_4Z3VKI

Information Source:
http://www.umm.edu/altmed/articles/green-tea-000255.htm
http://www.ars.usda.gov/is/AR/archive/sep03/tea0903.htm
http://en.wikipedia.org/wiki/Potential_effects_of_tea_on_health



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