( AFAIK, seen this research before, it’s oxygenation. )

Source date (UTC): 2018-10-27 20:03:55 UTC

Original post: https://twitter.com/i/web/status/1056275321631268866

Reply addressees: @DegenRolf

Replying to: https://twitter.com/i/web/status/1055782513015209984

IN REPLY TO:

@DegenRolf

Hard to chew: Although chewing gum may make you look dumb, it actually enhanced subsequent test performance. https://t.co/y0DFaE8Ypc https://t.co/TEo8XeP9bC

Original post: https://twitter.com/i/web/status/1055782513015209984