You’re drinking out of the wrong shape of glass.
Ever notice how those beers at your favorite Friday-night pub seem to go down so easily? It may not have anything to do with the type or the taps or the kind of day you had. The next time you're in there, take a look at the glasses. In a study published in the journal PLoS ONE, people tended to chug alcohol 60 percent faster when it was served in a curved glass than in a straight one. The curvy shape also tricked people into misjudging how much alcohol it took to fill the glass halfway. Your best bet? Bottled beer, so you'll know how much you've had to drink.