Question of the Week 14.08.18 - Do emotional and pain-induced tears differ?
Humans are the only animals that cry tears of emotion as well as pain. But does each type of tear differ in its chemical composition, and can you tell why someone was crying from looking at this?
Question of the Week 14.08.18 - Do emotional and pain-induced tears differ?
Humans are the only animals that cry tears of emotion as well as pain. But does each type of tear differ in its chemical composition, and can you tell why someone was crying from looking at this?
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