As our society is becoming richer, people are more health conscious today. In term of beverage, green tea is thought as the healthiest drink as it is not only has the rehydrate ability, but it is also flavonoid rich that manage to protect our body from heart disease.
Investigation on green tea drinkers illustrate that they are far less vulnerable to a wide range of illness, from viral infection to chronic degenerative disease like stroke, cancer, cardiovascular disease and osteoporosis.
Research shows that green tea has really high concentration of flavonoids (antioxidant) which consist of catechins and their derivatives. Antioxidant is the biological process that inhibits the oxidation which will produce highly reactive free radicals. Flavonoids substance comprises of larger than 1/3 of the green tea dry weight. Epigallocatechin-3-gallate (EGCG) is the most abundant catechin in all green tea. It has the greatest antioxidant activity of all green tea's catechins and therefore is believed to play the most paramount role in the green tea's anticancer and antioxidant effect. Green tea EGCG is so rich that a cup of green tea might have 20-35mg of it.
In our arteries, there is a one cell thick lining that behaves as the interface between the bloodstream and the wall of the artery where blood plaques can form, this is known as arterial endothelium. When heart disease occurs, a type of enzyme will hasten the production of free radicals in the artery endothelium, thus amplifies the level of free radicals in arteries intensely. Green tea EGCG will inhibit the enzymes needed in the production of the free radicals and thus shields the endothelium from injured by free radical. Hence green tea is playing a significant role in controlling cardiovascular disease.
EGCG also assists in halting the death of heart muscle cells after ischemia/reperfusion injury, by preventing the activation of inflammation compounds (STAT-1) that will cause oxidative damage which kills cardiovascular cell in reperfusion injury.
Besides, cancer cells require enzyme dihydrofolate reductase (DHFR) to create DNA and multiply. EGCG will interfere with the DHFR and is practically obstructing the spread of cancer cells.
Furthermore, EGCG could also facilitate the recovery of injured heart cells, and hence allowing quick recovery of tissues and alleviating organs damage.
In conclusion, green tea EGCG has outstanding benefit in helping heart disease curbing as well as in heart illness damage healing. As such for those who are suffering from cardiovascular disease and those who are health sensitive, green tea is the top-notch option of beverage for them. Having few cups of green tea, primarily decaf green tea a day rather than decaffeinated coffee will undoubtedly guarantee our long term health.
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