Readers reply: why do humans cry when they are sad?, Biology

The long-running series in which readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts

Crying Has A Physiological Effect On The Body

Simply Stated: Why Do We Cry When We're Sad?

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The science of a good cry: In evolutionary terms, it signals two

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Why We Cry and What It Can Teach Us

How To Make Your Readers Cry - Writer's Life.org

Why Do We Cry?, The Science of Crying

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