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Sunday, February 27, 2011

Tired? A cup of hot tea will perk you up, boost brain power

CUP THAT MATTERS

London: Feeling exhausted? Just sip a cup of hot tea, for a study has claimed that drinking the beverage not only gives human brain a lift, but also reduces tiredness.
    Tea drinking has already been linked with lowering the risk of heart disease, cancer and Parkinson's. Other research has shown that drinking tea on a regular basis for ten or more years may help improve bone density.
    Now, Dutch researchers have carried out the study and found that it's the natural ingredients in tea which improve brain power and increase alertness, the latest edition of the 'Nutritional Neuroscience' journal reported.
    For the study, the researchers looked at the effect of key chemicals found in tea
on the mental performance of 44 young volunteers.
    The effects of these ingredients, an amino acid called L-theanine — which is also found in green tea — and caffeine at levels typically found in a cup of tea, were compared with a dummy treatment.
    The active ingredients significantly improved accura
cy across a number of switching tasks for those who drank the tea after 20 and 70 minutes, compared with the placebo. The tea drinkers' alertness was also heightened, the study found.
    Tea was also found to reduced tiredness among the subjects, who were aged under 40, say the researchers. "The results suggest the combination helps to focus attention during a demanding cognitive task," they were quoted by the 'Daily Mail' as saying.
    Dr Tim Bond, of the industry-backed Tea Advisory Panel, said the latest findings backed a previous study which showed drinking two cups of black tea "improves the ability to react to stimuli and to focus attention on the task in hand". PTI

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