Tea had for many years been believed to contribute extensively to a person's well being (health wise). The rich antioxidants found in tea help getting rid of free radicals from our body.

Q: What are Antioxidants?
A: Antioxidants are molecules which can safely interact with free radicals and terminate the chain reaction before vital molecules are damaged.
Q: What are Free Radicals?
A: Free radicals are highly reactive compounds that are created in the body during normal metabolic functions or introduced from the environment.
Q: What is tannin?
A: Tannin is essential to the development of flavor in red wines. And the tannins produced in unripe fruits to protect them from predators disappear when the fruit ripens. But they do not dissipate in the production of most teas.
Q: How does the length of infusion in water affects caffeine level in a cup of tea?
A: Black tea infused for 5 minutes yields about 40-100 milligrams, whereas a 3 minute infusion produces about 20-40 milligrams.
Q: Tea For the Heart?
A: Tea acts as a gentle stimulant to the heart and circulatory system. Secondly, it strengthens and keeps the blood vessel walls soft and thirdly there are evidences that the phenols in tea inhibit the absorption of cholesterol in the digestive tract, which could help decrease the cholesterol in the blood stream. Apart from that, tea may also decrease the blood's tendency to from thrombi or unwanted clots.