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by rdmsr 3435 days ago
There was an article earlier this week on HN about the effects of stimulants on Chess Ability that was oddly consistent with this: https://worldchess.com/2017/01/25/special-report-new-study-f...

In particular, players would tend to lose on time more often when taking stimulants. When framed from the perspective of this article, that effect becomes "obvious".