Is there any truth to the idea that you are less likely to get
a hangover with “good” (expensive) wine and spirits, and more
likely to get a hangover with cheap drinks?
I’m excluding from the question homebrew or illegally produced alcohol, just commercial products of various prices.
I’ve already heard that dehydration is a major factor in hangovers. Any cites for this? Is it the sole factor, or just a major one?