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A comment on L-theanine, a constituent in tea, and its effect on mental state (2008) [pdf]. Parent comment

Re:L-theanine, a constituent in tea, and its effect on menta... by mancerayder on Monday July 30, 2018 @01:06PM (#17646013)
Is there evidence that the human brain has changed / evolved genetically in the last few thousand years?

A few thousand years is not a long time in evolutionary terms.

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