We all are aware and well experienced about the calming and relaxing benefits of black tea. Not only does it help slow you down after a long day, studies show that the amino acid L-theanine found in black tea can help you relax and concentrate better.Black tea has also been shown to reduce levels of the stress hormone cortisol when consumed in moderate amounts on a regular basis.Of course, caffeinated teas, such as black tea, white tea, and caffeinated green tea, should be avoided late at night, but there is some evidence that drinking certain herbal teas before bed can help facilitate sleep.
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