Pepsi originated the marketing strategy known as The Pepsi Generation. This strategy was a constant repetitious advertising of Pepsi aimed at young people. It worked under the assumption that there are new consumers coming of age every day and if you stop marketing to the newest comsumers, you will have a shrinking base of established consumers of your product.
Pepsi may have derived its name from pepsin, an enzyme produced in the mucosal lining of the stomach that acts to degrade protein. Similar inspiration may have led to the naming of Pepsin Gum, first produced by Dr. Edward E. Beeman, whose bookkeeper, Nellie Horton, suggested that he put pepsin into gum "since so many people buy pepsin for digestion and gum for no reason at all."