[dblshot]

"First, while alcohol in the beverage did increase how hung-over people reported feeling the next morning compared to drinking a placebo,
OK I went to yet another Christmas party last night so maybe my brain isn't fully functioning but how do you give a person a placebo for alcohol without the person knowing it? And if the subject knows they are getting a placebo what's the point in giving it to him/her?

[ichabod1]

I wondered about how they worked the placebos myself. I got a vague impression that both nights they gave them a certain number of drinks, but on the drinking night some of the drinks had alcohol in them. Either way, this is a hard sort of thing to control for. Hangovers are hard to measure.