Monday, April 14, 2014

AIP Draft: Rachel and Pamela- Physical Effects of Laughter

          Laughter and comedy are things that we have commonly discussed and attempted to define over and over again in class.  As we have discussed this, we have talked about the various qualities of both of these, how they relate, and how they are portrayed in plays or defined in articles.  The basis of laughter is how it makes us feel (or don’t feel according to Bergson) and our experiences and response toward an external source.  This observation is what led us, Pamela and Rachel, to see the effects it has on us internally.  It is commonly said that laughter is healthy for everyone, but why? What is it about laughter that enhances the quality of life and how does the affects of laughter on the body relate to the definitions of laughter that we have begun to develop?  This is the exact type of questions that we asked and are going to attempt to answer to get a more comprehensive definition of laughter for those of us that are interested in biology/ chemistry.
            Lucky for us there is a word that defines what we are studying- gelotology, the study of laughter.  The first thing that is to be noted is that there are various kinds of laughter and each different kind of laughter involves various network pathways of the brain.  The various kinds of laughter includes but are not limited to a response to joy, response to tickling, a signal of mockery, or in response to something humorous (Science Daily).  The later is what we are going to focus on in this blog, just to demonstrate what physically happens.  The same can be done for all types and incorporated into one interactive project.  This interactive project could be on an internet site that allows you to click on various parts of the body and see the affects laughter produces or involve a color coded scheme which correlates with the network path each type of laughter takes.
            A common theme of the effects laughter has on us is that it improves our oxygen levels.  This is done by the muscles in our face and chest that is stretched, the increased breathing rate, and the increase in pulse.  A pioneer in laughter research, William Fry claimed that it took ten minutes on a rowing machine for his heart rate to reach the level it would after just one minute of hearty laughter (WebMD).  It also aids our immune system and improves our ability to fight off infection.  It does this by reducing stress hormones released, and increasing our cells that help fight infection like natural killer cells, T-cells, and B-cells (How Stuff Works). 
            The main aspect we were curious about was what hormones are released? Do these hormones or pathways hint to the definition of laughter that Bergson portrayed?  From that article, Bergson mentioned that laughter is void of emotion.  Our project contains the differences that each of these has on the brain.  The main difference is that emotions are usually limited to one area of the brain, where laughter resonates throughout.  The frontal lobe of your brain is your emotional response.  In comparison, laughter uses the left side of the cortex to analyze the words and structure of the comical situation or joke, the right hemisphere of the cortex to “get” the joke, and sensory processing areas like the occipital lobe (lobe that interprets visual information)(How Stuff Works).   As for the hormones, it is known that laughter stimulates the release of endorphins, which promotes happiness ( the same hormone that is associated with “runner’s high”).  However, the various hormones that are released and brain pathways are different depending on which kind of laughter.  For example, nervous laughter is a result of high stress steroids, cortisol and adrenaline, and a physical attempt to lower those (Super Consciousness). 
            I imagine that many people’s eyes glaze over at this kind of information, but it is this kind of thing that amazes me, and I believe can give an insight to laughter that other things cannot.  Here is a cool website that gives a breakdown of what happens to our body when we laugh. 



                                                                     Works Cited
Berk, Lee S., M.D. "Laughter Does the Body Good." SuperConsciousness Magazine. N.p., n.d. Web. 14 Apr. 2014. <http://www.superconsciousness.com/topics/health/interview-dr-lee-s-berk>.
Brain, Marshall. "How Laughter Works." HowStuffWorks. HowStuffWorks.com, 01 Apr. 2000. Web. 14 Apr. 2014. <http://science.howstuffworks.com/life/laughter1.htm>.
Feature, R. Morgan GriffinWebMD. "Laughter: Good For Your Health." WebMD. WebMD, n.d. Web. 14 Apr. 2014. <http://www.webmd.com/balance/features/give-your-body-boost-with-laughter>.
"Is Laughter Really the Best Medicine?" ScienceDaily. ScienceDaily, n.d. Web. 14 

3 comments:

  1. This is very interesting. I'd like to see if you can find a connection between the biological effects and Bergson's laughter.

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  2. Since I am a biology major and wanting to enter the field of medicine, I think that this is an awesome idea. I would really enjoy learning about what areas of the brain are affected by the different kinds of stimuli that cause us to laugh and if that laughter has an effect on any of the other areas of our body.

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  3. I really like this idea of taking an objective approach to what most people consider a subjective experience. The difference in hormones released based on the type of laughter is especially interesting to me. I'd definitely pluck around on an interactive website that explains how different parts of the body are affected in different ways!

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