Taking good care of your mouth -- teeth and gums -- does more than help ensure you have a bright, white smile. A healthy mouth and healthy body go hand-in-hand. Good oral hygiene and oral health can improve your overall health, reducing the risk of serious disease and perhaps even preserving your memory in your golden years. The expression, "healthy mouth, healthy you," really is true -- and is backed up by growing scientific evidence. It's never too early to start teaching your children to take care of their teeth and gums -- healthy habits learned in childhood can pay off in adulthood.