thumb|A child in [[Laos laughing|upright=.97]] Audio of a woman laughing|thumb|right|upright=.97
I don't have sufficient context to write an accurate overview based solely on the provided information. The context only shows image captions (a child laughing and audio of a woman laughing) without any explanatory text about what laughter is or why it matters. To write an accurate overview based only on provided context, I would need substantive information about laughter's definition and significance.
AI-generated from the Wikipedia summary — may contain errors.
thumb|A child in [[Laos laughing|upright=.97]] Audio of a woman laughing|thumb|right|upright=.97
Laughter is a typically pleasant physical reaction and emotion consisting usually of rhythmical, usually audible contractions of the diaphragm and other parts of the respiratory system. It is a response to certain external or internal stimuli. Laughter can rise from such activities as being tickled, or from humorous stories, imagery, videos or thoughts. Most commonly, it is considered an auditory expression of a number of positive emotional states, such as joy, mirth, happiness or relief. On some occasions, however, it may be caused by contrary emotional states such as embarrassment, surprise, or confusion such as nervous laughter or courtesy laugh. Age, gender, education, language and culture are all indicators as to whether a person will experience laughter in a given situation. Other than humans, some other species of primate (chimpanzees, gorillas and orangutans) show laughter-like vocalizations in response to physical contact such as wrestling, play chasing or tickling.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).