Written by Chanel M. contributed by Kyle J. Norton, All right reserve
Wuyi Cliff Oolong tea, the best of Oolong and one of 3 ingredients of Tava Tea, is a species of Camellia sinensis belonging to the family Theaceae, native the Wuyi Mountain area. Its leaves and leaf buds has been used as tea in Chinese culture and many places in the world, including Wuyi Rock Tea, Tie Guan Yin tea, Taiwan tea and Oolong tea, Iron Goddess of Mercy and other products in Fujian, etc.. Oolong can be bought as green or black tea but it is best known as a black tea in the process of withering under the strong sun and oxidation before curling and twisting.
Amino acid l-theanine, rarely found in nature, is found abundantly in black tea and to a slightly lesser extent in green tea and oolong tea
8. Mental Alertness
a. In the evialuation of a unique amino acid of tea, L-theanine that may modulate aspects of brain function in humans, in the study of "L-theanine, a natural constituent in tea, and its effect on mental state" by Nobre AC, Rao A, Owen GN.[8a], researchers found that , L-theanine has a significant effect on the general state of mental alertness or arousal. Furthermore, alpha activity is known to play an important role in critical aspects of attention.
b. Cognition and psychomotor performance
In the evaluation of the cognition and psychomotor performance after drinking of black tea, according to the study of "The effects of black tea and other beverages on aspects of cognition and psychomotor performance" by Hindmarch I, Quinlan PT, Moore KL, Parkin C., [8b] researchers suggested that tea ingestion is associated with rapid increases in alertness and information processing capacity and tea drinking throughout the day largely prevents the diurnal pattern of performance decrements.
c. Brain's attention circuitry
In the assess whether theanine would cause modulation of anticipatory alpha activity during selective attentional deployments to stimuli in different sensory modalities of the study of "
"A naturalistic investigation of the effects of day-long consumption of tea, coffee and water on alertness, sleep onset and sleep quality" by Hindmarch I, Rigney U, Stanley N, Quinlan P, Rycroft J, Lane J.[8c], researchers found that theanine may have a specific effect on the brain's attention circuitry.
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