Your tongue is home to a lot of germs. Thousands of these microbes feed on the many dead cells and other delectable items that accumulate on the top of your tongue. Noxious fumes are released as a result of this germ activity, which can give you really bad breath. By scraping your tongue once a day, you can clear away the germ buffet (please notice the catchy poetry). We recommend the BreathRx Tongue Scraper (see this web link for details: http://www.levyhoffman.com/recommendations.html ). Brushing your tongue is not that effective, as it more or less gives the dead cells a comb-over rather than actually clearing them from your tongue. Make sure you get as far back on your tongue as possible. You will be amazed what comes off of your tongue and how fresh your mouth feels.