There's an old saying that nothing is certain in life but death and taxes.
But add one more thing to the list -- bad breath. Just about everyone has had
"At least 50% of the adult population has bad breath at one point or
another, and just about everyone has it in the morning,"says Andrew Spielman,
DMD, PhD, associate dean for academic affairs and professor of basic science
and craniofacial biology at the NYU College of Dentistry.
According to Spielman, 90% of bad breath is caused by bacteria,...