You've got a friend in your frenulum, the piece of skin that attaches your tongue
to the bottom of your mouth. But if your frenulum is too short, that's called tongue-tied,
and it can cause problems with your speech. Doctors sometimes do an operation to free
up the tongue by snipping the frenulum. If you need this operation, a doctor will
give you a special medicine called anesthesia to keep you comfortable.