Organic Tava Tea Researches - The Ingredient of Green Sencha Health Benefits - Nervous Tension

Health Benefits of Green Sencha
17. Mental Alertness
a. In the evaluation of drinking green tea brings relaxation of the study of "L-theanine—a unique amino acid of green tea and its relaxation effect in humans" by Lekh Raj Juneja, Djong-Chi Chu, Tsutomu Okubo, Yukiko Nagato, Hidehiko Yokogoshi[17a], researchers found that L-theanine administered intraperitoneally to rats reached the brain within 30 min without any metabolic change. Theanine also acts as a neurotransmitter in the brain and decreased blood pressure significantly in hypertensive rats. In general, animals always generate very weak electric pulses on the surface of the brain, called brain waves.

b. In the investigation of L-Theanine found abundantly in green tea as anxiety Reducer of the study of "The acute effects of L-theanine in comparison with alprazolam on anticipatory anxiety in humans" by Lu K, Gray MA, Oliver C, Liley DT, Harrison BJ, Bartholomeusz CF, Phan KL, Nathan PJ.[17b], the write wrote that while L-theanine may have some relaxing effects under resting conditions, neither L-theanine not alprazolam demonstrate any acute anxiolytic effects under conditions of increased anxiety in the AA model.

c. In the investigation of L-theanine and its neuroprotective, mood-enhancing, and relaxation properties of the of the study of "L-theanine relieves positive, activation, and anxiety symptoms in patients with schizophrenia and schizoaffective disorder: an 8-week, randomized, double-blind, placebo-controlled, 2-center study" by Ritsner MS, Miodownik C, Ratner Y, Shleifer T, Mar M, Pintov L, Lerner V.[17c], researchers found that 40 patients completed the study protocol. Compared with placebo, L-theanine augmentation was associated with reduction of anxiety (P = .015; measured by the HARS scale) and positive (P = .009) and general psychopathology (P < .001) scores (measured by the PANSS 3-dimensional model).

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Sources
[1] http://www.ncbi.nlm.nih.gov/pubmed/21664180
[17a] http://www.sciencedirect.com/science/article/pii/S0924224499000448
[17b] http://www.ncbi.nlm.nih.gov/pubmed/15378679
[17c] http://www.ncbi.nlm.nih.gov/pubmed/21208586