Barley more diverse sources of alcohol, such as the more common corn, rye and wheat in the USA. In the US, a grain type may be identified on a whisky label if that type of grain constitutes 51% or more of the ingredients and certain other conditions are satisfied. About 25% of the United States' production of barley is used for malting, for which barley is the best-suited grain. Barley wine is a style of strong beer from the English brewing tradition. Another alcoholic drink known by the same name, enjoyed in the 18th century, was prepared by boiling barley in
Caffeinated alcoholic drink of regular alcoholic drinks and of caffeinated alcoholic drinks. The University of Florida surveyed 802 college students who had mixed alcohol and caffeine, and found they were three times more likely to leave a bar highly intoxicated and four times more likely to want to drink and drive than drinkers who did not consume alcoholic energy drinks. Another study surveyed 697 students from Wake Forest University and found that the students who had consumed caffeinated alcoholic drinks were more likely to drink and drive, take advantage of someone sexually, or end up needing medical treatment. From this perspective, it is