Which Is Better: Breathing From Your Mouth Or Nose?

Which Is Better: Breathing From Your Mouth Or Nose?

Take a moment to notice your breathing. Is your mouth or nose doing the work? This matters more than you think.

Breathing through your mouth is a health problem. It’s seen in people of all ages, but it’s most common in pre-school aged children. And since they’re still growing, it can even mess with physical development.1


If you’re wondering why nasal breathing is better, check out these seven problems caused by mouth breathing.

7 Problems Caused By Mouth Breathing

1. Dry Mouth

Mouth Breathing Causes Dry Mouth


Dry mouth or xerostomia is a common consequence of mouth breathing. It might even be one of the first things you notice!

Breathing through your mouth dries up the saliva. Your lips and mouth will become parched, causing a weird burning sensation. Even your sense of taste may change.


The best remedy is breathing through your nose. Drinking lots of water and staying hydrated are also the keys. Avoid licking your lips and use a lip balm to add back moisture.

2. Mouth Infections

Mouth Infection Is Caused By Mouth Breathing


Dry mouth can snowball into other problems. You’ll have a higher risk for infections like gingivitis and oral thrush.2 These disorders will make eating, talking, and brushing your teeth super uncomfortable.

It’s all thanks to the lack of saliva. Typically, saliva keeps harmful germs under control. But if you breathe through your mouth, there won’t be enough to do the job.


3. Tooth Decay

Tooth Decay Is Caused By Mouth Breathing

Cavities are never fun, but dryness from mouth breathing can bring them on.


When we eat food, the bacteria in our mouth feeds on the sugar. This produces an acid that can erode our teeth. However, saliva is in charge of neutralizing that acid and preventing cavities. Without sufficient saliva, tooth decay is a bite away.3

4. Bad Breath

Mouth Breathing Causes Bad Breath


For the sake of stopping bad breath, it’s always better to breathe through your nose.

The dryness from mouth breathing makes it easy for smelly bacteria to grow. Food particles will also hang around, since saliva can’t wash them away.4 The self-cleaning abilities of saliva will also significantly decrease.5

5. Tense Jaw Muscles

Mouth Breathing Causes Tense Jaw Muscles

Mouth breathing is stressful for your jaw. It also throws off the balance of lip, tongue, and cheek muscles. In growing children, this can actually cause problems with facial development. People of all ages will feel chronic muscle tension, so it’s important to stop mouth breathing.6

6. Poor Chewing Ability

Mouth Breathing Causes Poor Chewing Ability

Muscle problems will also make it hard to eat. It’ll take longer to chew food, increasing the need for more bites. The posterior teeth, which are located in the back of your mouth, will struggle to work properly.7

Beyond chewing, mouth breathing leads to abnormal swallowing.8 Plus, excess air can sneak in, causing flatulence, bloating, and burping.9

7. Sleep Apnea

Mouth Breathing Causes Sleep Apnea

If mouth breathing continues at night, obstructive sleep apnea is likely. The upper airway will have a difficult time lengthening and collapsing properly. Breathing will abruptly stop and start, causing sleep disturbances.10

And when you frequently wake up? Grogginess, exhaustion, and poor daytime functioning are likely.11

As you can see, it’s better to breathe through your nose. Your overall health depends on it! If you can’t kick the habit on your own, consult a sleep doctor for help.