Green tea is not oxidized
(fermented) during its processing, and so its buds and leaves retain much of
the naturally occurring chemicals present in the leaves when they grow, which gives green
tea its
famed health benefits.
Anti-aging
Health Benefits
Many of the affects
of aging, particularly on the skin, are caused by a build up of free radicals
in the body, which can damage and aging of your body's cells. Free
radicals do occur naturally, but their concentrations are increased due to
exposure to pollution, too much sunlight and some types of chemicals. SOD
(superoxide Dismutase) is one of the bodies chemicals that mops up free
radicals to help prevent them damaging the bodies cells. Chemicals called
catechins that are present in green tea significantly improve the activity of
SOD, and so provide a large boost to the bodies ability to fight the affect of
free radicals.
Effects on bacterial and fungal
infections (anti-bacterial)
A cup of green tea
contains anywhere up to 200mg of catechins, that are known to give it's anti
oxidant benefits.
However other scientific studies from Brigham and Womens Hospital in Boston, Okayama University in Japan and the National Institute of Chemistry in Slovenia, have backed up what was known in traditional Chinese medicine – that catechins, and so green tea, have a big benefit in helping fend off attacks on the body from bacteria.
It was found that the catechins in green tea inhibit the production of a key enzyme needed by bacteria, called gyrase, which interestingly is also the target of many clinically developed antibiotics. This therefore inhibits the growth of the bacteria, and so reduces the change of getting an infection, and also helps alleviate existing bacterial infections.
The study done in Japan was particularly telling. They found that patients who had been infected with drug resistant Staphlylococcus (staph) responded positively when treated with the catechins extracted from green tea.
However other scientific studies from Brigham and Womens Hospital in Boston, Okayama University in Japan and the National Institute of Chemistry in Slovenia, have backed up what was known in traditional Chinese medicine – that catechins, and so green tea, have a big benefit in helping fend off attacks on the body from bacteria.
It was found that the catechins in green tea inhibit the production of a key enzyme needed by bacteria, called gyrase, which interestingly is also the target of many clinically developed antibiotics. This therefore inhibits the growth of the bacteria, and so reduces the change of getting an infection, and also helps alleviate existing bacterial infections.
The study done in Japan was particularly telling. They found that patients who had been infected with drug resistant Staphlylococcus (staph) responded positively when treated with the catechins extracted from green tea.
Cholesterol Fighting
Several studies have
shown that the catechins in teas can act as so-called “hypolipidemics” - that
is they lower the amount of “bad” cholesterol in the body (called LDL), while
increasing the amount of “good” cholesterol (called HDL). Additionally
other studies have suggested that other chemicals in green tea, called
flavonols, help reduce hardening of the arteries, by naturally helping to keep
the blood thin.
The upshot of this suggests that it helps reduce the chance of cardiovascular diseases, in particular heart attacks and strokes.
The upshot of this suggests that it helps reduce the chance of cardiovascular diseases, in particular heart attacks and strokes.
Green tea Benefits for Weight loose and
reduce Cholesterol
“Drinking green tea
everyday makes you thin” is a quote from an ancient Chinese medical text called
Bencao Shiyi. 1,300 years and modern science is beginning to understand
why.
For a detailed look
into the weight loss benefits of green tea, we'd recommend you read Swen
Wolfram's review called “Anti-obesity effects of green tea”. We'll just
give you a quick rundown of the latest scientific thoughts on how this
occurs below.
It appears that there
are three compounds in green tea that collectively act together to help reduce
weight – the catechins, caffeine and an amino acid called theanine. Researchers
did a study with animals, monitoring weight, food intake, fat levels and other
health indicators and concluded that these compounds appears to act
synergistically to reduce weight gain. You can read there study here for more
info.
Another study by Lin
and Lin-Shaiu suggested that this action partly occurs because the chemicals
help suppress the bodies production of fatty acids, by regulating the bodies
gene that is responsible for their production.
Of course weight loss
and cholesterol are strongly intertwined. These studies point to the fact
that lowering cholesterol helps to reduce your weight, and also the reverse,
that lowering your weight will help cut down cholesterol. So whether its
the chicken or the egg first, drinking green tea, in combination with a good
diet and exercise, definitely supports the ancient chinese observation, that it
does indeed act as a good way to reduce your weight.
For more information
about Green Tea weigh loss Benefits please check our article on Do Green Tea Weight Loss Diets Really Work
Prevention of tooth decay and bad breath
Fluoride is
frequently added world-wide to drinking water and tooth paste as the number one
way to help prevent tooth decay. Green tea is a big natural source of
fluoride, so this in combination with its anti-bacterial effects provides a
great natural way to help strengthen your teeth, prevent cavities and help
reduce bad breath.
Cancer prevention
Studies have also
suggested that green tea possibly helps prevent the onset of several types of
cancers, including lung, prostrate and breast cancers. The possible
reason, according to a study at Kyushu University in Japan, is an anti-oxidant
in the tea called epigallocatechin gallate (the short form – EGCG – is of
course a lot easier to say!).
Another study on bladder cancer suggested that it has potential as a cancer fighting agent, while is proving that the chemicals in the tea are able to target the cancer cells while leaving the healthy cells untouched and alone.
Another study on bladder cancer suggested that it has potential as a cancer fighting agent, while is proving that the chemicals in the tea are able to target the cancer cells while leaving the healthy cells untouched and alone.
Green Tea Benefit for skin
In traditional
Chinese medicine green tea and its extracts are commonly used to prevent and
treat a number of skin diseases, including skin cancer. The high content
of a different anti-oxidants, called polyphenols, seems to be responsible for
this by removing free radicals from the skin before they have a chance to
attack the DNA in you skins cells, which otherwise can lead to cancer.
Topical applications of green tea extracts also help protect against UV exposure from the sun, and are used to reduce the impact the sun has on the health of your skin.
Topical applications of green tea extracts also help protect against UV exposure from the sun, and are used to reduce the impact the sun has on the health of your skin.
It contains a high
concentration of polyphenols, chemicals with potent antioxidant properties. In
modern Chinese medicine and culture, green tea and its extracts are extensively
used in the prevention and treatment of various skin diseases, including skin cancer.
The rich polyphenol content in it scavenges free radicals, cell damaging
compounds in the body that alter DNA molecules in the chromosomes, inducing
harmful mutations that lead to the initiation of skin cancer.
Topical applications
of green tea extracts (EGCG) have protective effects on UVA- and UVB-induced
skin damage (photoaging and carcinogenesis).
A study done in 2003
at the Georgia Medical College seemed to back this up, by concluding that green
tea helps rejuvenate skin cells and protect against ultraviolet damage to the
cells.
These results and
beliefs all suggest that it might have several significant benefits to your
health. But, like all things, it is not any sort of magic bullet that
will by itself provide you with benefits, nor do these benefits appear
immediately. Many of the benefits found for green tea, only occur after
drinking it for an extended time, months or years. This is also backed up
by Chinese traditional medicine, where it is recommended as an integral long
term part of a healthy diet, not as some immediate fix that will instantly cure
diseases.
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