During your lifetime, you will produce enough saliva to fill two swimming pools

Funny and strange fact: 

Did You Know? During your lifetime, you will produce enough saliva to fill two swimming pools. An average human produces between 1 to 2 liters of saliva each day, which is a maximum of 730 liters per year.

The average life expectancy is just over 70 years, which gives a maximum of 51,100 liters of saliva produced in an average lifetime.

This is more than enough to fill two swimming pools.

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