It does not sound like an outcome that big coffee paid for it to be so:
Behaviourally, coffee drinkers exhibited greater impulsivity and emotional reactivity, whereas non-coffee drinkers demonstrated better memory performance.
> It does not sound like an outcome that big coffee paid for it to be so:
Who said anything about big coffee? These guys might be a secret, anti-coffee organisation. /s
Do they though? Any data on that? Also, the highly caffeinated people might also be sleep deprived, which impacts memory and emotional regulation