There’s noting worse than sitting next to, or talking to a person that has bad breath: if it’s bad enough, it can be sickening. I know first hand, because a member of my family had this problem several years back, and nothing he did seemed to help. There are many reasons for bad breath: poor mouth hygiene, cavities, lack of oxygen in the mouth (drink water to alleviate this problem), digestive issues, cavernous tonsils, etc.
And since there are many reasons for halitosis, there are many ways to work on fixing the problem. See how on next page.