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

The Science Behind Why We Cry - Southwestern Eye Center

Why men find it so hard to cry

Why Do We Cry? 6 Practical Explanations

Why Do We Cry? 6 Practical Explanations

Why Are Humans the Only Animals That Cry When They're Sad?

Crying - Wikipedia

Brain Sciences, Free Full-Text

My Quest for Sadness - The New York Times

What are Tears Made of? The Biochemistry of Emotion

What is the biological advantage of crying when emotional?

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

What is the simplest trick to make a reader cry? - Quora

Why Do We Cry?, The Science of Crying

Why Do We Cry? 6 Practical Explanations