The Joy Of Laughter :: Biology Essays Research Papers

The mirth Of LaughterLaughter is defined by dictionary.com as the act of expressing veritable emotions, especially mirth or delight, by a series of spontaneous, usually unarticulated sounds often accompanied by corresponding facial and embodied movements.(1) A thesaurus offers immense amounts of synonyms for the word laugh, including giggle, cackle, chortle, snort, chuckle, crow, howl, snicker, snigger, convulse, titter, and the list goes on.(2) in that respect are many words to describe gag because it is such an implicit in(p) set about of our lives. The question of why we laugh may first be answered by looking at laughter in the purely physiological sense, which has been studied as gelotology. Then we can look at the effectuate of laughter, not just bodilyly, but mentally and socially as well. afterward going over the oft-overlooked background of laughter, we can delve into the motivations behind our laughter.The echt flow of physical effects in the brain after tryout a joke are as follows. First, the left side of the mantle analyzes the words and structure of the joke. Then the brains large frontal lobe becomes very active. This part of the brain has a lot to do with social emotional responses. after this, the right hemisphere of the cortex helps with comprehension of the joke. Then stimulation of the get sections occurred, producing the physical responses of laughter.(3) The production of laughter is also highly involved with certain(prenominal) parts of the brain. For example, the aboriginal cortex has been found to have a prohibit electrical wave as a person laughs. The hypothalamus, part of the central cortex, has been found to be a main contributor to the production of loud, insubordinate laughter.The combination of the set of gestures and production of sound is what makes up laughter. The actual muscles that pee-pee a smile are fifteen facial muscles which contract and give the zygomatic major muscle, which basically lifts your up per lip. When the epiglottis half-close the larynx, the respiratory system is subvert which causes air intake to occur irregularly, making you gasp. (3) In extreme circumstances, the vote out ducts are activated, so that while the mouth is opening and closing and the shinny for oxygen intake continues, the face becomes moist and often red. Laughs can domain in sound from virtually silent to noisy guffaws. The overall physical effects of laughter are that laughter stimulates the immune system. The experience of laughter lowers serum cortisol levels.