Article 1: Tea - A toast to good health
Tea sets you free. From anxiety, stress and free radicals.
Tea is one of the richest sources of antioxidants, the chemicals that prevent cell damage caused by highly reactive molecules called free radicals that are often associated with cancer and to a lesser extent, heart disease.
More Polyphenol, less cancer
Polyphenols are a type of antioxidant abundant in tea (and also red wine), and have been shown to deactivate substances that help cancer grow and block the action of enzymes that cancers need for growth. Polyphenols in tea, particularly green tea, are more potent than polyphenols from other sources such as Vitamins C and E. Black tea has more complex antioxidants than green tea, that appear to benefit the heart.
Long live Catechins
Tea contains large amounts of Catechins, a type of tannin, with antioxidant qualities linked with longevity, reducing blood pressure, and preventing cancer, heart and liver diseases. Tannins are organic substance found in tea and wood. Taken in large amounts, however, tannins can be toxic.Their negative effects in the human body can be reduced if consumed with milk. But we would recommend moderation to milk.
L-Theanine; for the right kind of interference
A study by scientists at Brigham and Women's Hospital in Boston found that the immune system of people who drank five to six cups of tea every day for two to four weeks produced five times more infection-fighting interferon cells than people who drank a similar amount of coffee. The interferon cells were produced by gamma delta T cells in the immune system triggered by amino acids called L-Theanine found in large quantities in tea.
The mighty Vitamin Tea
Green tea has more vitamins, particularly B1, B2 and C than other teas because it is hardly processed. EGCG is among the cancer-fighting polyphenols found in green tea. Strongly associated with cancer fighting, it has 30 times more radical-fighting effects that Vitamin E and 500 times more than Vitamin C. EGCG can prevent the growth of blood vessels, which supply nutrients that cancerous tumours need to grow. It was once thought that green tea contains significantly more polyphenols such as EGCG than other teas but the amounts are more or less the same.
In the green of health
Green tea, according to some evidences, seems to prevent second heart attacks among people who have already had one; reduces muscle degeneration; cuts the infecting-ability of viruses and bacteria; and offers protection from prostrate, breast, stomach and colon cancer. Let’s raise our teacups to that!
Article 2: The Search and the Research
Of mice and men
Most of the evidence on tea's health benefits comes from animals studies. These include studies that show that mice given polyphenols are less likely to develop arthritis and that tea inhibits the growth of tumour. Animals have shown that polyphenols combat cancer, and are particularly effective in combating cancer of the oral cavity and digestive tract.
Learnings from across the world
The cancer-fighting qualities of tea have been conducted in several countries.In China, studies have showed that polyphenols reduced the size of pre-cancerous mouth lesions. A number of studies have addressed the benefits of tea to the heart. And also, that heavy tea drinking lowered cholesterol levels.
A study in Japan has linked Oolong tea with lowering cholesterol levels. The popularity of tea in Japan and China may partly explain why rates of heart diseases are so low there.
An impressive study in the United States with 35,000 women showed that tea consumption reduced the chances of developing cancer in the digestive and urinary tract. A Harvard study indicated that black tea drinkers were 50% less likely to get heart diseases as non-tea drinkers.
In the Netherlands, a study with 110,000 men and women indicated that tea drinking reduced cancers of the lung, breast and colon.
In Italy, a study showed that men with high risk of prostate cancer, who drank an equivalent of three or four cups of green tea a day, were less likely to develop cancer than similar men given anplacebo.
Tea drinking has also been linked with reducing cavities and fighting plaque. One study has shown that it kills cavity-causing bacteria. It is yet undecided on whether tea and green tea in particular are the elixirs that they are touted to be. Positive results from animal studies don't necessarily translate to positive results for humans. In studies that have showed reduced cancer, disease or cholesterol levels among green tea or tea drinkers, it is difficult to prove that it was the tea that led to the positive result and not something else. Many tea drinkers also eat lots of fruits and vegetables and it is difficult to ascertain which things are actually providing the help. But the fact that tea is a healthy drink in general cannot be contradicted.