Structure of tears influenced by what makes us cry

Photographs of 100 tears, taken through a microscope, reveal the different images they create when we cry from sadness, pain or joy

The Science Of Crying: Why Do People Cry, And What Are Tears? — Steemit

The Science Behind Why We Cry - Southwestern Eye Center

The Microscopic Structures of Dried Human Tears, Science

Dacryocystitis (Tear Duct Infection) - All About Vision

The importance of tears for eye health

Why Does Classical Music Make You Cry? What Makes It So Emotional?, Sound of Life

Is Crying Good Or Bad For Your Skin? Derms Weigh In

Why it's so hard to ignore a baby's cry, according to science

Trail of Tears - Wikipedia