• Question: Why do we cry when we're sad? how does our body know when we're sad?

    Asked by kingers7 to Mike, Pip, Tianfu, Tim, Tom on 28 Jun 2012.
    • Photo: Tom Lister

      Tom Lister answered on 28 Jun 2012:

      I think our tear ducts are joined straight to our brain, so it is a reflex thing like moving a muscle – although I am sure there must be a release of hormones associated with a change of emotional state.

    • Photo: Tim Stephens

      Tim Stephens answered on 28 Jun 2012:

      I agree with Tom. Probably hormones.

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