It's a cozy Sunday morning as you sneak into your parents' bedroom for some snuggle time. You carefully slip between your mom and dad, feeling the warmth of their bodies. Then your mom turns over, smiles gently and pulls you close for a little kiss. However, instead of the inviting smell you normally associate with your mom, you are enveloped in the foulest breath that has ever left a human body!
How could someone who looks so good on the outside smell so bad on the inside? When you complain about your mom's breath, she tries to convince you that yours is just as bad. You're sure she's wrong. After all, when you exhale into your hands and sniff, your breath smells fine.