Bad breath is often caused by bacteria that build up on the tongue. If you often have bad breath, there are two easy things you can do to help with the bad breath (aside from the obvious one of brushing your teeth).

First, drink more water. Drinking more water will help wash away the bacteria that is the root of bad breath.

Second, when you are brushing your teeth (you are brushing your teeth, right?), also brush your tongue. This will also help get rid of the bacteria that cause bad breath.