Bad breath, medically called halitosis, can result from poor dental health habits and may be a sign of other health problems. Bad breath can also be made worse by the types of foods you eat and other unhealthy lifestyle habits. All the food eaten begins to be broken down in your mouth. As foods are digested and absorbed into the bloodstream, they are eventually carried to your lungs and given off in your breath. If you eat foods with strong odours (such as garlic or onions), brushing and flossing — even mouthwash — merely covers up the odour temporarily. The odour will not go away completely until the foods have passed through your body. If you don’t brush and floss teeth daily, food particles can remain in your mouth, promoting bacterial growth between teeth, around the gums, and on the tongue – this causes bad breath. Antibacterial mouth rinses can also help reduce bacteria. In addition, odor-causing bacteria and food particles can cause bad breath if dentures are not properly cleaned. Smoking or chewing tobacco-based products can cause bad breath, stain teeth, reduce your ability to taste foods, and irritate your gums.