What is the purpose of actually having tears when we are sad? We lose salt and water but how does that help us?
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There are three different forms of tears, basal, reflex and psychic tears. These tears are all produced by the lacrimal (lachrymal) gland, but psychic tears also coincide with other bodily responses, due to their production being driven from the hypothalamus in the limbic part of the brain. https://youtu.be/HdtC8-LApEY
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