Morning breath is usually unpleasant due to the odor formed by bacteria as a result of drying of the mouth while sleeping. The mouth dries while sleeping due to the decrease in the normal flow of saliva at these hours. This is the main reason why bacteria easily thrives and grows in the mouth.
The odor worsens when you snore or breathe through the mouth. In both instances, the individual is more susceptible to drying out than those that don’t snore and breath in their mouths.
Causes of Bad Breath in the Morning
There are also medications that can cause drying of the mouth overnight, resulting in the generation of odor causing bacteria which worsens your halitosis if you have one.
This is most common to older people who are into different medications. They usually have unpleasant breath in the morning. An example of medication that can cause bad breath is a mouth breather.
Smokers can also have a bad morning breath since smoke from a lighted cigarette can cause drying up of the saliva. The saliva is considered a natural mouth rinse. A lighted cigarette can also cause the increase in temperature of our mouth to transform our mouth into a breeding ground for odor causing bacteria. The saliva formed in the day is more than the saliva produced while you sleep. This can increase temperature of your mouth before sleeping and can really worsen bad breath.
Allergies can also cause bad breath in the morning. Allergies which cause sneezing and running nose result in the formation of mucus. This mucus may drip down at the back of your throat and become a source of nutrition of bacteria which in turn leads to formation of more bacteria for a stronger bad breath.
An infected post nasal drip can also cause more odor causing bacteria in your mouth.