For some experts, this is really just a psychological illusion, as "spirit drinks" contain the same type of alcohol, ethanol. In certain experiments, it has been observed that certain subjects, convinced that they are consuming alcoholic beverages, present the same symptoms as those who actually do.
Being drunk only depends on the amount of alcohol in the blood. In hangover, we think that the effects of hangover are due to the "deadly mixture" of different types of liquors or wines and not to the amount we ingest.
In short, we could say that it is not the quality of the different drinks that are drunk at the same time, but the exceeding of the tolerance limit of our body to alcohol.
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