Tea and Health Benefits
The extracts of tea contains polyphenols called catechins which are synergistic with vitamin E and C. protective against digestive and respiratory infections and can reduce the cancer-promoting actions of carcinogens and ultraviolet light. The extracts reduce cholesterol levels, and can also reduce high blood pressure.
They are also helpful with the following conditions.
» Colds and Infections
» Heart Disease
New research has shown that sipping a relaxing cup of tea, especially green tea, may provide a number of health benefits. Studies from the United States of agriculture have shown that tea may pack as one serving of many vegetables or fruits. It is green or black tea from the evergreen tree known as the camelliasinesis that has been found to possess many healing properties. These teas contain powerful substances that are classified as phytochemicals. There are hundreds of phytochemicals found only in plant foods that are starting a new era in nutrition. Examples of a phytochemicals are carotenoids found in carrots, capsicum in red chili peppers and flavonoids in tomatoes. You can see these substances clearly in the brilliant orange and red colors of these vegetables.
Green or black tea contains a phytochemical epigallocatechingallate, that is often called EGCG for short. Emerging research shows that this substance contains strong antioxidant potential, Antioxidant help protect the body against the damage of free radicals. Free radicals are natural by-products of metabolization, may also be formed in the body as a result of smoking, air pollution and exposure to sunlight. Free radicals are highly reactive substances that can, if not controlled, damage cells in some people's bodies.
It's thought that this damage can set off a chain of biological events that can lead to the progression of some cancers and heart disease, numerous research studies have shown that antioxidant help protect the body against this detrimental effect and also reduce the risk of these deadly diseases.
In a study of the antioxidant activity of various fruits and vegetables, USDA researchers found that black and green tea have a great antioxidant effect than individual servings of many vegetables such as carrots and broccoli or fruits including apples, grapes, kiwi and grapefruit. While tea is not a substitute for a balanced diet rich in fruits and vegetables it can certainly play a part in a healthy lifestyle.
Another interesting fact is that tea is one of the few natural sources of mineral fluoride. Fluoride is the most successful agent against tooth decay found to date has changed the face modern dentistry. Tea has been shown to have positive effect on preventing tooth decay and gum disease. However, this applies to drinking tea moderation, Excessive amounts may not be beneficial.
Scientific research is just beginning to explore the connection between drinking tea and its effect on maintaining the body homeostasis and balance. In other words, tea is thought to be rejuvenating. Tea is enjoyed worldwide because while it is also reviving and uplifting. It is also thought that the act of shipping tea in itself has restorative powers. Maybe this is one the reasons why tea has become such a hit.
L-theanine is an amino acid that occurs naturallyin the camellia sinensis plant. In fact unless you take an artificially manufactured dietary supplement, tea is only way to get L-theanine in your diet. This powerful amino acid boosts alpha wave activity in our brains, which promotes a state of relaxed concentration. Think 'quite alertness'. The calming effect of L-theanine actually counteract extreme highs and jitteriness that can result from excessive caffeine intake.
As with almost all other essential elements in the leaf, L-theanine is highly concentrated in the newest growth. A highly quality loose leaf tea will contain the most. L-theanine, and very highest levels are usually found in green and white teas.
1. Tea can boost exercise endurance. Scientists have found that the catechins (antioxidants) in green tea extract increase the body's ability to burn fat as fuel, which accounts for improved muscle endurance.
2. Drinking tea could help reduce the risk of heart attack. Tea might also help protect against cardiovascular and degenerative diseases.
3. The antioxidants in tea might help protect against a boatload of cancers, including breast, colon, colorectal, skin, lung, esophagus, stomach, small intestine, pancreas, liver, ovarian, prostate and oral cancers. But don't rely solely on tea to keep a healthy body — tea is not a miracle cure, after all. While more studies than not suggest that tea has cancer-fighting benefits, the current research is mixed.
4. Tea helps fight free radicals. Tea is high in oxygen radical absorbance capacity ("ORAC" to its friends), which is a fancy way of saying that it helps destroy free radicals (which can damage DNA) in the body. While our bodies are designed to fight free radicals on their own, they're not 100 percent effective — and since damage from these radical oxygen ninjas has been linked to cancer, heart disease and neurological degeneration, we'll take all the help we can get.
5. Tea is hydrating to the body (even despite the caffeine!).
6. Drinking tea is linked with a lower risk of Parkinson's disease. When considered with other factors like smoking, physical activity, age and body mass index, regular tea drinking was associated with a lowered risk of Parkinson's disease in both men and women.
7. Tea might provide protection from ultraviolet rays. We know it's important to limit exposure to UV rays, and we all know what it's like to feel the burn. The good news is that green tea may act as a back-up sunscreen.
8. Tea could keep waist circumference in check. In one study, participants who regularly consumed hot tea had lower waist circumference and lower BMI than non-consuming participants. Scientists speculate that regular tea drinking lowers the risk of metabolic syndrome (which increases the risk of diabetes, artery disease and stroke), although it's important to remember that correlation does not equal causation.
9. Regular tea drinking might also counteract some of the negative effects of smoking and might even lessen the risk of lung cancer (good news, obviously, but not a justification for cigs).
10. Tea could be beneficial to people with Type 2 diabetes. Studies suggest that compounds in green tea could help diabetics better process sugars.
11. Tea can help the body recover from radiation. One study found that tea helped protect against cellular degeneration upon exposure to radiation, while another found that tea can help skin bounce backpostexposure.
12. Green tea has been found to improve bone mineral density and strength.
13. Tea might be an effective agent in the prevention and treatment of neurological diseases, especially degenerative diseases (think Alzheimer's). While many factors influence brain health, polyphenols in green tea may help maintain the parts of the brain that regulate learning and memory.