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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 hentrep on Monday July 30, 2018 @11:57AM (#17645376)
The presumption in your comment is that evolution selects for brain traits which confer some sort of advantage. This ignores the fact that the modern human brain is used very differently than that of our ancestors thousands of years ago.
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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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