Theanine relaxation effect

By increasing dopamine and y-aminobutyric acid, and influencing brain concentrations of serotonin, theanine can also help inhibit the stimulating effects of caffeine. - Theanine creates a sense of relaxation approximately 30-40 min after ingestion via at least two different mechanisms. First, this amino acid directly stimulates the production of a-brain waves, creating a state of deep relaxation and mental alertness similar to that achieved through meditation. Second, theanine is involved in the formation of the inhibitory neurotransmitter, y-aminobutyric acid, which influences the levels of two other neurotransmitters, dopamine and serotonin, producing the key relaxation effect. ... 

L-theanine is an amino acid found in green tea. Over the years, many men and women have achieved a soothing effect from sipping a cup of green tea, and L-theanine appears to be the active ingredient that reduces stress and facilitates relaxation without drowsiness. This natural substance is absorbed in the small intestine and crosses the blood-brain barrier where it is absorbed into the brain. There it stimulates the production of restful and relaxed alpha brain waves similar to that achieved in meditation. There is... 

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