Just in time for St. Patrick’s Day this Sunday, the American Chemical Society released a video today as part of their Byte Size Science program all about The Chemistry of Alcohol and Hangovers.

For those celebrating St. Patrick’s Day with green beer, moderation is key. Alcohol has several negative effects on your body — many of which can amount to a miserable morning after. Find out the science behind those brutal hangovers and alcohol’s other effects on the body in our latest video, and maybe we can inspire some caution in your celebration this year.

Doubtful, but it’s certainly worth a try. The video below was created by the ACS Office of Public Affairs, explaining “the science behind these unpleasant after-effects that excessive drinking can have on the body.” DOn’t say you haven’t been warned.