When can a Mountain Dew make you smarter than a glass of a nice Pinot Noir? Well, beyond the short-term cognitive boost from the caffeine-rich soft drink, being seen holding a glass of wine can reduce your intelligence – not in real terms, but in the eyes of others. As I posted on Forbes.com the other day in Proof: Alcohol Makes You (Look) Dumb, even a stone-cold sober person holding a glass of wine suffers an apparent IQ drop. […]