Not unless you were already hard working.
Caffeine: the Aldrich Ames of productivity. According to a new study at the University of British Columbia, the consumption of caffeine can actually increase laziness amongst otherwise hard workers. Psychologists injected 40 rats with amphetamines and caffeine to see how it would affect their work ethics. The research team found that amphetamines made the “hard working” rats behave in a lazier manner, and made “slacker rats” work harder than before. Caffeine, in turn, just caused hard workers to work less. Why they had to use rats as subjects to assess the impact of caffeine on work habits in a university setting is another question.