Laughter is an audible expression or the appearance of happiness Happiness is a state of mind or feeling characterized by contentment, love, satisfaction, pleasure, or joy. A variety of philosophical, religious, psychological and biological approaches have striven to define happiness and identify its sources, or an inward feeling of joy (laughing on the inside). It may ensue (as a physiological Physiology is the science of the functioning of living systems. It is a subcategory of biology. In physiology, the scientific method is applied to determine how organisms, organ systems, organs, cells and biomolecules carry out the chemical or physical function that they have in a living system. The word physiology is from Greek φύσις, physis, reaction) from jokes A joke is a short story or ironic depiction of a situation communicated with the intent of being humorous. These jokes will normally have a punchline that will end the sentence to make it humorous. A joke can also be a single phrase or statement that employs sarcasm. The word joke can also be used as a slang term for a person or thing which is not, tickling Tickling is the act of touching a part of the body so as to cause involuntary twitching movements or laughter. The word "tickle" evolved from the Middle English tikelen, perhaps frequentative of ticken, to touch lightly. The idiom tickled pink means to be pleased or delighted or other stimuli. It is in most cases a very pleasant sensation.
Laughter is found among various animals Laughter in animals other than humans describes animal behavior which resembles human laughter, as well as in humans. Among the human species, it is a part of human behaviour Human behavior is the population of behaviors exhibited by human beings and influenced by culture, attitudes, emotions, values, ethics, authority, rapport, hypnosis, persuasion, coercion and/or genetics regulated by the brain The brain is the center of the nervous system in all vertebrate, and most invertebrate, animals. Some primitive animals such as jellyfish and starfish have a decentralized nervous system without a brain, while sponges lack any nervous system at all. In vertebrates, the brain is located in the head, protected by the skull and close to the primary, helping humans clarify their intentions in social interaction In social science, a social relation or social interaction refers to a relationship between two , three (i.e. a triad) or more individuals (e.g. a social group). Social relations, derived from individual agency, form the basis of the social structure. To this extent social relations are always the basic object of analysis for social scientists and providing an emotional context to conversations. Laughter is used as a signal for being part of a group — it signals acceptance and positive interactions with others. Laughter is sometimes seemingly contagious, and the laughter of one person can itself provoke laughter from others as a positive feedback Positive feedback, sometimes referred to as "cumulative causation", refers to a situation where some effect causes more of itself. A system undergoing positive feedback is unstable, that is, it will tend to spiral out of control as the effect amplifies itself.[1] This may account in part for the popularity of laugh tracks A laugh track, laughter soundtrack, laughter track, LFN , canned laughter or a laughing audience is a separate soundtrack invented by Charles "Charley" Douglass, with the artificial sound of audience laughter, made to be inserted into TV comedy shows and sitcoms. The first American television show to incorporate a laugh track was the in situation comedy A situation comedy, usually referred to as a sitcom, is a genre of comedy that usually consists of recurring characters in a common environment such as a home or workplace and can include laugh tracks or studio audiences. Such programs originated in radio. Today, sitcoms are found almost exclusively on television as one of its dominant narrative television shows.
Scientifically speaking, laughter is caused by the epiglottis constricting the larynx. The study of humor and laughter, and its psychological and physiological effects on the human body is called gelotology Gelotology is the study of laughing and laughter, its effects on the human body, and of medical abnormalities of laughing. It is also the psychological and physiological study of laughter. The word is from the Greek gelos, geloto meaning laugh, laughter, laughing . The word gelotology is often misspelled as gelatology.
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Broadway World
(During our lunchtime interview, that statement sets Wilkinson off on gales of laughter until she concedes: "Actually, you do know what's wrong with you ...
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