Just as nobody likes a whiner, nobody likes bad breath. It's a powerful way to make a bad first impression. But the good news is that there are relatively simple ways to take care of halitosis.
Much of the time, bad breath comes from the gases produced by bacteria accumulating in the mouth, on the gums, teeth and tongue, said Dr. Jeffrey Spiegel, an otolaryngologist in Boston. Many of these gases contain sulfur, which gives them their stinky smell.
A simple and obvious way to treat this is to brush your teeth and floss. Tongue scrapers can also go a long way toward removing bacteria that cake onto the back of your tongue, Spiegel told LiveScience.
Here are five other, more surprising ways to fight bad breath: