This has been tried to be empirically demonstrated by a team of researchers from the Netherlands and Canada, who have studied alcoholic habits and the consequences of the day after in a group of 789 Canadian students.
Scientists have compared your BAC with testimonies of hangover or no hangover. Thus they have been able to observe that 80% of those who declared themselves free of this discomfort after a night of drinking actually threw relatively moderate levels : less than 1 gram of alcohol per liter. A driver tests positive in a breathalyzer test in Spain if it exceeds 0.5 g / l. The conclusion is that the higher the alcohol consumption, the greater the hangover, and that those who say they do not suffer from it have actually drunk less than they think.
They also tested with 829 Dutch students the theory that drinking water or eating after ingestion reduces symptoms. The results of the questionnaires are not misleading either: they are unfounded beliefs. "Our data indicate that the only way to not have a hangover is to drink less alcohol," sums up one of the authors of the research, Dr. Joris Verster, from the University of Utretch.
