Why does reading the word yawn trigger an uncontrollable urge to do it yourself?
In short: Contagious yawning is a curious phenomenon that affects humans as young as four and even our canine companions. This video explores the physiological and psychological theories behind why a simple sight or mention of a yawn can trigger a chain reaction.
While yawning is often associated with fatigue, the contagious variety remains a subject of scientific intrigue. Researchers have observed this behavior in children starting at age four, suggesting a developmental component to the reflex.
The phenomenon extends beyond humans, as dogs also exhibit contagious yawning. Theories regarding its origin range from basic physiological responses to complex psychological triggers, though no single explanation has been definitively proven as the sole cause.
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- Summary by Intellect · source: Why is yawning contagious? - Claudia Aguirre
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