• Question: why do we have salt in our tears?

    Asked by werewolvesrock2002 to Catherine, Mo Rassul, John, Del on 19 Mar 2014.
    • Photo: Catherine Mansfield

      Catherine Mansfield answered on 19 Mar 2014:

      All liquids in the human body contain salt including tears. Salt is very important as it helps to control the amount of water in our body. The main purpose of tears is to wash away dirt and to keep our eyes clean and so another advantage of having salt in our tears would be to kill of any bacteria in our eyes.

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