There is some strong evidence that green tea included in you every day diet can reduce bladder, colon, esophageal, pancreas, rectum, and stomach cancer up to 60%. An antioxidant known as "epigallocatechin gallate" (EGCG for short) is at least 100 more times more effective than vitamin C and 25 times more effective than vitamin E at protecting cells from harmful influence.
  The amazing thing about it that EGCG it not only inhibits the growth of new cancer cells it also kills some of the existing cancer sells without harming the healthy ones.
Lowers "bad" cholesterol (known as LDL) and improves the ratio of "good" cholesterol (known as HDL). It explains why tea-drinkers can eat almost twice the foods containing cholesterol as a those who don't drink green tea, but still have an equal cholesterol count.
  Green tea is rich in a group of chemicals known collectively as catechism. These catechins have demonstrated anti-viral activity, inhibit the enzyme Neuraminidase, act as Hem agglutinin Inhibitors and reduce the production of TNF and other inflammatory compounds.
  Green tea is the variety which keeps the original color of the tea leaves without fermentation during processing. The enzymes in the leaves, which cause discoloring and fermentation, are deactivated by several minutes of steam heating. Because green tea looks and tastes nearer the original condition of the plant, only good and tender leaves are generally used for making green tea. Most flavored teas, such as jasmine, are made from the green tea.

  This prevents sharp increases of insulin in your blood (insulin stimulates the transformation of fatty acids into fat molecules which are stored as fat droplets). As the result fat is burned faster without being "locked" in the fat sells. I want you to remember that even a small effect can go a long way when you are dealing with your metabolism. For example, just by drinking one cup of tea a day or by taking green tea extract in the form of supplement you will burn about an extra 78 calories. This adds up to over 28,000 calories in a year. Which is about 8 extra pounds of weight.

  It is quite certain that green tea is now holding promise in various areas of weight loss. Drink a cup of your favorite green tea every day and lose those extra pounds easier and faster.
How to Brew a Cup of Green Tea
Producing the perfect cup of green tea is a tricky process. If not handled properly, those same polyphenols that provide health benefits can ruin the flavor, making the tea taste "gassy." It's particularly important not to over brew.    
 While it's best to follow the manufacturer's instructions for each variety of green tea, here are some general instructions:
Use one tea bag, or 2 - 4 grams of tea,* per cup.
Fill a kettle with cold water and bring to a boil.
After unplugging the kettle, allow it to stand for up to 3 minutes.
Pour the heated water over the tea bag or tea, and allow it to steep for up to 3 minutes. If using a tea bag, remove the bag.
Allow the tea to cool for three more minutes.
One to two teaspoons, depending on the variety of green tea you are brewing.