Saturday 1 December 2012

Science Journal 2: Drowning in Health?


Drowning in Health?  



      A few days ago, the class held a discussion on whether or not drinking too much water was bad for you.  This discussion made an impact on me since I have always been told that I do not drink enough water.  As well, I have been in countless situations where someone complains of a headache or pain, and they are recommended to drink water.  Coming from India, where it is extremely hot, water has always been the “go-to” solution within my family and friends when our bodies are in discomfort.  Water is vital to the existence of life.  For thousands of years certain civilizations have prospered because of the abundance of water near them.  Even now, many towns and cities are positioned along with bodies of water.  It is this huge importance that water has in our lives that causes my interest on the topic of the possibility of drowning yourself by drinking too much water. 

        Water is a major component of our bodies.  Around 60% of our body is comprised of water!  However, our bodies use water for more than building ourselves up.  When cells convert chemical energy from the vitamins and nutrients in food to other forms of energy, a lot of waste is produced.  In order to get rid of this waste, the human body must have enough water within it to dissolve the toxins and dispose of them.  As well, the body takes out certain toxins within foods, and uses water to dispose of them.  Some of the ways we can see these toxins leaving our bodies are through urine and sweat.  If there isn’t enough water in our bodies, then these toxins will not be able to exit our bodies, and can harm us.  Having stated the necessity for water, there are serious consequences for drinking too much water. 

        Our cells let objects pass through their semipermeable membranes in a process called osmosis.  Because of diffusion, which is when particles move to form an even concentration, solvents in our cells will flow from an area with a less concentrated solution to an area with a higher concentration.  When excess water enters our bodies, the concentration of sodium within our tissues drastically decreases.  The process of osmosis will occur, and the solvent (in this case, water) will flow from the tissues and into the cells in an attempt to diffuse the concentration of sodium within the cell and its surroundings.  The extreme dilution of sodium within one’s body is called hyponatremia, and can have serious effects on humans.  
Some of the effects of hyponatremia include irregular heartbeats, seizures, and death.

     This class discussion interested me because I could relate to it from my personal experiences.  I had always wondered if constantly drinking water when your body experiences pain would have any negative consequences.  This also ties in to the discussion the class had earlier about scientific literacy.  People might unknowingly cause harm when advising others to drink more water.  It is important for us to be able to take suggestions, opinions, and facts that have been given to us and look at them with a critical and scientific perspective.  People often twist things in order to get what they want, or give detrimental advice with good intentions because of the scientific illiteracy of others.  By being aware and taking the effort to double check facts and figures, we can prevent being cheated, and find easier and more efficient ways of doing things.  This knowledge will now help me out when (inevitably) I am in a situation where water is being recommended to make someone feels better.  Instead of blindly following suggestions, I can now provide proof to support my argument that drinking too much water can possibly have negative consequences. 

        When learning about hyponatremia, I made sure to check the credibility of all of my sources.  The class discussion we had was a trusted source of information, since the information came from a certified educator.  When doing some more research on the topic of hyponatremia, I ensured that I checked more than one source, and I looked up the author of each website that I used to gather information.  The majority of websites I used ended in a “.gov” ending, showing that it is a government website and can be trusted.  The About.com article I used was written by Annie Helmenstein, who possesses a Ph. D in biomedical sciences.  This high level of education means that she knows a lot about biomedical science, and shows that the information she has put into the article about hyponatremia is most likely credible.  

Bibliography: 
http://chemistry.about.com/cs/5/f/blwaterintox.htm
http://www.nlm.nih.gov/medlineplus/ency/article/000394.htm

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