Bad habits are bad for a reason, right? We all know we should be drinking more water and less alcohol. We keep reading about how increasingly dangerous vaping is to our overall respiratory health. But these vices take a toll in ways we don't often even recognize. For instance, you might think you've got great oral hygiene because you brush your teeth, floss every night and steer clear of sticky sweets. But there are little things we all do that can cause some serious damage to our teeth. And we don't want to damage our smiles. Having good teeth is a big key to being confident and is constantly brought up when discussing what makes someone attractive. To help you keep your mouth healthy, we asked Dr. Heather Kunen, a dentist and orthodontist at New York's Beam Street dental studio, for the bad habits to watch out for and how to manage the fallout.