Regular physical exercise is one of the best ways to promote general blood flow in the body, and while it may sound counterintuitive, regular exercise can help to keep your smile healthy. Exercise strengthens your heart and improves circulation throughout your entire body, and that means that exercise also helps your gums and teeth get the blood, oxygen, and nutrients you need. While exercise is no substitute for brushing and flossing, it’s an important part of strengthening your natural defenses and promoting healthy gums over the long-run – and it’ll help you live a healthier, happier life in general.