The Many Things I Wonder About.

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The Many Things I Wonder About.
By Kristen Nuss
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How long can a human go without sleep?

• 18 days, 21 hours, 40 minutes is the record for
  the longest period without sleep. (But thats
  just crazy)
• Typically, a person can go without sleep for up
  to ten days.
• After the tenth day it is almost impossible to
  rest your eyes or stop thinking about sleeping.

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Symptoms of the sleep deprived

• Usually start appearing after 16-20 hours without
  sleep.
• Lack of mental focus on complex activities,
  increased irritability and the drooping of eyes.
  After 24 hours, mood swings rapidly increase,
• After a full 48 hours, there is a tendency of
  dementia and hallucinations.
• Less adept at mathematical and verbal tasks and
  attention and memory suffer
• Prolonged sleep deprivation also affect metabolic
  rates and be more susceptible to obesity and
  diabetes.
• The ability of a body to metabolize sugar will
  decline and turn sugar into fat.
• A persons immune system is weakened without sleep
  and prolonged periods with lack of sleep may
  result in death.

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Why does my stomach growl?

• The growling of the stomach has to do with the
  air within a gut. Your gut is a hollow tube that
  is lined with muscle.
• The muscle contracts and serves to keep mucus,
  remaining food, and bacteria from accumulating at
  any one site.
• The contractions also produce vibrations when air
  bubbles become trapped in the lumen.
• The vibrations produce the growling noises
  associated with hunger.

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In other words

• My stomach is not growling because I am hungry.
  It is growling because my stomach muscles are
  moving back and forth on an empty stomach.
• My stomach can growl at all times, when I am
  asleep or even after I have eaten.
• The louder my stomach is, the more empty space
  there is, which means I should fill it with some
  delicious food.

www.notmartha.org/.../ tinydonuts/chocolate.jpg
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WARNING

• The next two slides are a bit graphic. It may be
  inappropriate for young children or those with
  sensitive stomachs.

http//www.insitegroup.com/graphics/magcoverstory.
jpg
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Oh, The Appendix-Is there really any use?

• The appendix is a tube that is connected to the
  cecum, or the beginning of the large intestine.
• There is no function. There is no known
  physiological function.
• It most likely represents a degenerated portion
  of the cecum that, in ancestral forms aided in
  celluse digestion. (Rodrigues, 2000)

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Appendix

• The appendix contains lymphoid tissues and may
  produce antibodies, however, there is no
  definitive function
• It is believed that the appendix will gradually
  disappear in human beings because our diet does
  not include cellulose anymore.

This is an appendix!
http//www.kovariks.net/archives/appendix202.jpg
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Help From the Web

• The Effects of Sleep Deprivation on Brain and
  Behavior by Sarah Ledoux
• Questions and Answers by Risley Prudence
• Zoology Archieve-Appendix Function by Mabel
  Rodrigues.
• The Vestigality of the Human Vermiform Appendix
  by Douglas Theobald.
• Ask the Doc Western Washington University