If you're like me, you get a little speech from your dentist at your semiannual checkups about how you should floss more often. And I know that there are a lot of you who are like me, because only about 49 percent of Americans floss every day, and 10 percent never floss at all. It's good for your teeth! Obviously! But it's also good for your overall health—and can even help you lose weight. According to Mark Burhenne, D.D.S., not flossing can lead to gingivitis (which 70 to 80 percent of ...