Animal study: L-theanine, caffeine and sleep

[Arnold]

Are you unable to get to sleep because there’s too much caffeine [structural formula below left] racing round your body? Then you might benefit from L-theanine [structural formula below right]. Researchers at Kyungpook National University in South Korea write about this in Pharmacology, Biochemistry and Behavior. The Koreans did experiments on rats and discovered that

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