Yes. You could blame that savage hangover on the seven tequila shots you did last night. But we have a much better scapegoat. Genetics.
The basic cause of a hangover, of course, is ethanol (the alcohol in our drinks), which causes dehydration and urination and probably some really bad text conversations. But other factors, including diet, blood sugar levels, and even your immune system can play a role, and a recent study shows that genetics might be influencing those factors.
Actually, probably half of your predisposition to a terrible hangover has to do with your genes.
A study of 4,000 Australian twins found that “genetic factors accounted for 45% of the difference in hangover frequency in women and 40% in men.” We’re gonna have to guess that study was really, really fun at first and then got terrible once the hangovers set in, and instead of ordering a greasy breakfast, participants were forced to fill out questionnaires and have those sticky science wires stuck to their throbbing heads.
Go here for more details.