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10 Gross Facts About Mouths That’ll Freak You Out

We put food in here and kiss people with them, and yet they are grosser than you can imagine. Listerine can help, as it kills up to 97% of germs left behind after brushing.

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1. There are an estimated 600-plus species of bacteria that like to call the mouth home.

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Generally though, per person, you're only likely to play host to 34 to 72 of them.

2. The average gross human produces about a litre of saliva per day and 30,000 litres of saliva in a lifetime. That's enough to fill a swimming pool you won't wanna swim in.

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Get a note from your mum or go get changed.

3. 90% of life-threatening diseases have some oral symptoms.

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Your mouth is a window into your dying body.

4. Human saliva helps keep the mouth's pH balance slightly alkaline. If it didn't, the mouth would create an acidic environment that would dissolve its own teeth.

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And probably mouth and face! We're presuming. Praise saliva!

5. A child has all their adult teeth up inside their head even though you can't see them yet.

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They're just crammed up inside their carefully packed skull, freaking out people in medical museums.

6. There are over 100 million bacteria in a single drop of your human saliva.

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Mmm, kissing is romantic.

7. Your teeth are alive.

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Alive!

8. Introverts produce more saliva than extroverts.

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Scientists did an experiment to figure this out and found that introverted people produced 50% more saliva than other people because the reticular activating system (RAS) was working overtime in social situations as well as salivary ones. So that's another thing for them to feel weird about.

9. The hardest thing in your whole body is the enamel on your teeth.

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Extra fun fact: Some tumours can grow teeth just randomly inside a non-mouth part of your body (also eyes, hair, etc.). The human body is a wonderland.

10. The tongue is the strongest muscle in the body (relative to its size) and also the only muscle that is attached on only one end.

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Just flapping around in there. Flap, flap, flap.

Ugh, gross. Are you doing enough to take care of your mouth?

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Just brushing your teeth leaves behind millions of germs - germs that can cause decay, gum disease and bad breath. Listerine kills up to 97% of germs left behind after brushing. Complete the clean with Listerine. Find out more.

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