You mixed your drink with diet soda.
Your blood alcohol level will spike faster if your cocktail contains diet soda compared to regular soda, according to a small study recently published in the journal Alcoholism: Clinical and Experimental Research. In two different sessions, study participants drank the equivalent of three to four mixed drinks in a short period of time. When they drank vodka mixed with regular soda, their peak blood alcohol level measured 0.077, just under the legal limit of 0.08. But when they drank vodka mixed with diet soda? Their blood alcohol measured 0.091. Their perception was altered, too: After drinking diet drinks, people performed statistically worse on computer tests compared to how they did after sipping the regular version, even though they reported no noticeable change in how they felt or performed.
You chose a curvy glass.
John Moore/Getty Images
How well you “pace yourself” during a cocktail party may have to do with your glass. Study participants drank twice as slowly when their lager was in a typical “straight-sided” glass compared to when it was an angled “beer flute,” researchers at the University of Bristol found last year. The findings suggest that it may be harder to judge the halfway point of your drink in shaped glasses, according to Science Daily.