Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Bad Breath ?
    ### Response:
    There are many reasons why you might have bad breath. You can get it if you don't brush and floss regularly. Bacteria that build up in your mouth and between your teeth produce the bad odor. Other problems in your mouth, such as gum disease, dry mouth or cavities, may also cause it.
    