According to studies published in the Journal of American Medical Association, tea lowers your risk of death from all forms of cardiovascular diseases. And, there is growing evidence that tea potentially has cancer-fighting properties, plays a role in improving beneficial intestinal microflora, wards off diabetes, and helps protect your brain from free-radical damage. Also, the amino acid L-theanine, found almost exclusively in the tea plant, actively alters the attention networks of the brain, stimulating the production of alpha waves in the brain and producing feelings of well-being. Because it crosses the blood/brain barrier, it can increase levels of the neurotransmitter dopamine, which benefits mood while improving learning and concentration.
i have a couple of cups of coffee in the morning and then drink nothing but green tea all day long --- i can swear to its positive placebo effects if nothing else
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