Nothing like waking up from a beautiful state of bliss to the potent aroma of stagnant breath wafting out of your mouth and straight up into your nostrils. Don’t worry, though, it’s not your fault. When you’re not producing saliva, bacteria has a chance to build up and cause bad breath. This can occur when you sleep, especially with your mouth open. The solution is simple: chew gum. “The act of chewing stimulates salivary glands and increases saliva, taking care of dry mouth and rinsing away the dry breath,” Dr. Apa says. Look for gums that contain xylitol (most do now), an ingredient that fights cavities.

READ MORE: Why Does My Breath Smell?