BOSTON, Jan. 13 (UPI) -- Caffeinated "energy" drinks that many believe offset the sedating effects of alcohol and increase alertness and stamina are ineffective, a U.S. study says.
Jonathan Howland, a professor at Boston University's School of Public Health, and colleagues at the Center for Alcohol and Addiction Studies at Brown University randomized 129 participants, ages 21-30, into four groups: one group that consumed caffeinated beer; a second that consumed non-caffeinated beer; a third that consumed caffeinated non-alcoholic beer; and a fourth that consumed non-caffeinated, non-alcoholic beer.