Studies related to Stress and Theanine

L-Theanine Reduces Psychological And Physiological Stress Responses

Effect Decrease
Trial Design Randomized trial
Trial Length 24 hours
Number of Subjects 12
Sex Male
Age Range 18-29
Notes for this study:
In subjects given a mental arithmetic task after 200 mg of theanine or placebo, the increase in anxiety, stress, and heart rate that occurred in placebo was attenuated with theanine. The increase in salivary IgA concentration was approximately halved.

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