If you have stinky breath and have ruled out all the usual suspects -- like garlic and onions -- then you may be one of the estimated 65 percent of Americans who suffers from halitosis, or chronic bad breath.
In the animated TED-Ed video up top, bad breath expert Mel Rosenberg reveals the root of stanky mouth syndrome: bacteria.
Thus, smelly breath.
To combat the off-putting odor, make sure bacteria has nothing to feed on by brushing, flossing and visiting the dentist regularly.
Chewing gum sweetened with xylitol may also help as a quick fix, according to NYC dentist Jennifer Jablow.
If all else fails, pop a mint (or five) and accept your fate.