¿Qué son los escalofríos, los bostezos, la risa, el llanto y el hipo?

The video explores various involuntary human reactions such as tears, yawning, hiccups, laughter, and chills. It explains the types of tears and their functions, the mystery of yawning and its contagious nature, the causes and theories behind hiccups, the science of laughter and its health benefits, and the origins of chills and goosebumps. These phenomena are linked to biological, emotional, and evolutionary aspects, highlighting their roles in communication, empathy, and survival.

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