Strong green tea should not be drank in excessive quantites other wise hyperfluorosis may devolpe. Flouride levels reach a peak at six minutes of brewing time, and five minutes for caffeine. After ten minutes tannins, potential antixoidant compounds with astringent taste come out. Strong green tea has an average of 1.65mg of flouride in it, and the upper limit is 10mg therefore I suggest not drinking more than 3 cups of strong brewed green tea. There is also flouride in vegetables and fruits. Strong green tea has antidiarreha affects and kills microbes. Black tea has more caffeine than green tea. Strong brewed green tea can have 100mg of caffeine in it, and at 1000mg you may devolpe diahrreha and a low assoicated with depleted norepinephrine levels, a the brain's adrenal. You need tryosine and or phennalnye or what ever to make that nuerotransmitter. Green tea taken on an empty stomach best promotes detoxification, and with meals weight loss as it blocks the digestion of carbohydrates and fat. You shit em out! Chamomile has components that stimulate a harmone that rejuvinates hair, and chamomile is good for overall skin health. Chamomile is recommended against yeat infections also, but too much whole herb causes you to throw up unlike tea with no limits on use. Rooibos has 50 times the antioxidant capacity of green tea with its high levels of Superoxide dimutease or whatever.
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