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New Research Provides Evidence that Tea May Improve Attention and Focus, Keep Brain Cells Healthy, & Influence Genetics in Cancer
Date:7/18/2008

s had significant improvements in tests for attention, and that activity in cortical regions responsible for attention functions was enhanced," said author John Foxe, Ph.D., Professor of Neuroscience, Biology and Psychology at City College of the City University of New York. "What's more, we have seen that just 20 minutes after consuming theanine, the blood concentrations increase and the brain's alpha waves are impacted. It lasts about three to four hours, which we have speculated may be why people tend to drink a cup of tea every three-to-four hours during the day," added Dr. Foxe.

The new research from Dr. Foxe and his team used electrophysiological measures to monitor brain activity after individuals drank solutions containing a placebo, 50 mg caffeine, an amount of theanine equivalent to five to six cups of tea, or a combined treatment. The subjects were asked to complete a variety of attention-related computerized tasks.

The results from Dr. Foxe's laboratory, the Cognitive Neurophysiology Laboratory at the Nathan S. Kline Institute for Psychiatric Research in Orangeburg, New York, supported by the Lipton Institute of Tea, suggest that the effects of theanine in combination with caffeine are even greater than with either one alone in improving attention. Theanine may work synergistically with caffeine to help induce a more calming, relaxed state, but one that allows the mind to focus and concentrate better at tasks Theanine is known to be absorbed by the small intestine and cross the blood-brain barrier where it affects the brain's neurotransmitters, and increases alpha brain-wave activity. This alpha brain rhythm is known to induce a calmer, yet more alert, state of mind. A cup of brewed tea typically contains between 10 and 20 mg of theanine.

Tea May Protect Aging Brains from Alzheimer's and Parkinson's Diseases

Newly published study by Sylvia Mandel, Ph.D., of the Eve Topf Center for Neurodegenerative Diseases in Israel, show tha
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SOURCE Tea Council of the USA, Inc.
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