Green tea has long been known as a substitute for drinks such as coffee etc., which are healthier because of the low caffeine content and contains a very powerful natural antioxidants called polyphenols. Not only does this type of antioxidants help nourish the body, skin, and hair, but also helps inhibit the growth of cancer cells. Advertisement of green tea is also a healthy choice because of the way it is processed.
Green tea comes from the leaves of Camellia sinensis which simply steamed, so as to prevent any loss of the contents of catechins. While black tea or oolong tea is made from fermented leaves, causing the loss of compounds in anti oxidants. Green tea has been very popular all over the world, a variety of food, beverage, cosmetic and health food supplements now widely made from green tea extract. Some scientific research around the world found that that drinking green tea regularly lower the risk of heart illness and even cancer. Compared with ordinary tea, green tea has even less caffeine. In addition to higher green tea contains flavonoids (phytochemicals found in plant products) which have carcinogenic and anti-antioksidatif properties.
The bioactive substances in the tea leaves dissolve in the water and make it into the final drink.
When you drink a cup of quality tea, you're actually getting a large amount of beneficial substances with potent biological effects (1).
The best known of Reviews These is caffeine. A cup of green tea contains much less caffeine (24-40 mg) than a cup of coffee (100-200 mg), but still enough to have a mild effect.
Caffeine is a well known stimulant that has been shown to aid fat burning and improve exercise performance in numerous studies
Compounds in Green Tea Can Improve Brain Function and Make You Smarter
Green tea does more than just keep you awake, it can also make you smarter.
The key active ingredient is caffeine, which is a known stimulant.
It doesn’t contain as much as coffee, but enough to produce a response without causing the “jittery” effects associated with too much caffeine.
What caffeine does in the brain is to block an inhibitory neurotransmitter called Adenosine. This way, it actually increases the firing of neurons and the concentration of neurotransmitters like dopamine and norepinephrine
Studies show that caffeine and L-theanine can have synergistic effects. The combination of the two is particularly potent at improving brain function .
Because of the L-theanine and the smaller dose of caffeine, green tea can give you a much milder and different kind of “buzz” than coffee.
Many people report having more stable energy and being much more productive when they drink green tea, compared to coffee.
Bottom Line: Green tea contains less caffeine than coffee, but enough to produce an effect. It also contains the amino acid L-theanine, which can work synergistically with caffeine to improve brain function.
But where green tea really shines is in its massive range of antioxidants ... being loaded with potent antioxidants called catechins
The most important of Reviews These is EGCG (epigallocatechin gallate), a substance that can boost metabolism.
Keep in mind that Reviews These benefits can be derived both from drinking green tea as a beverage, as well as taking green tea extract as a supplement. Most of the studies used extracts.
Whether hot, iced, or with honey, brewed green tea is chockfull of health benefits. (One exception: Avoid bottled green tea, which is often filled with added sugar.) Made from leaves of the Camellia sinensis plant, green tea has a high concentration of powerful antioxidants called polyphenols and tea flavonoids known as catechins. These antioxidants help combat free radicals — substances that can alter and even kill cells in your body, causing premature aging, cancer, and other diseases — by neutralizing them. And fighting free radicals with green tea can have all kinds of benefits: Here are 10 scientifically supported reasons to add green tea to your diet.