Onions, Emotions, and Why We Cry

The video explores the reasons behind human crying, highlighting three types of tears: basal, reflex, and emotional. Basal tears keep eyes lubricated, reflex tears protect against irritants, and emotional tears are linked to feelings. Emotional tears have a unique chemical composition, containing proteins and stress hormones, which may help relieve stress. Theories suggest emotional tears serve as social signals, enhancing communication and empathy, and promoting group bonding.

What are some of the chemical components found in emotional tears?

How do emotional tears serve as a form of communication according to the text?