W HAT ARE THE ADVANTAGES AND DISADVANTAGES OF BEING LEFT -
HANDED ? By: Brianna Philipsen Science 7
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I NFORMATION ON LEFT HANDERS 10% of the worlds population is
left handed Being left handed is not part of the hand it is part of
the brain Left handed people use the right side of their brain
Males are 1 times more likely to be left handed then females
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I NFORMATION ON LEFT HANDERS If you are RR or Rr you are right
handed If you are rr you have no preference Left handed baseball
players are called South Paws
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D ISADVANTAGES Left handed people approximately live 9 years
less than right handed people Stuttering and dyslexia occur more in
left handed people Left-handedness causes carpel tunnel They are
more likely to have allergies than right handed people
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D ISADVANTAGES Left handed people are more likely to be
alcoholics than right handed people They get more migraines than
right handed people More than likely they wont be able to roll your
tongue They have trouble with scissors and binders
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A DVANTAGES Left handed people recover from strokes faster than
right handed people They also see underwater better Left handed
people are proven to be better at tennis, baseball, and
fencing
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F UN F ACTS A BOUT L EFT H ANDED P EOPLE Left Handed people
draw pictures facing the right There is a high chance that one twin
will be left handed Identical twins might have different hand
preferences Babies who are born to older moms are more likely to be
left handed
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F UN F ACTS A BOUT L EFT H ANDED P EOPLE Left handed peoples
fingernails grow faster on their left hand than their right Moms
who were stressed out when they were pregnant are more likely to be
left handed Researchers believe that the gene for left handers is
LRRTM1 It is believed that there is more left handed males than
females
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A NIMOTO
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R EFERENCES Hirshon, Bob, auth. "South Paw Minority." South Paw
Minority. Advancing Science Serving Society, 18 Apr 2008. web. 08
Dec 2011.. Wheat, David. "Science in Action." Science Update.
Science Update, 07 Dec 2004. Web. 08 Dec 2011.
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R EFERENCES Ulken, Eric. "Fun Facts about left handedness."
Seattle Times. Seattle Times, 16 Jun 2003. Web. 12 Dec 2011.. Leen,
Leen. "left handedness and right handedness." left handedness and
right handedness. xanga.com, 08 Oct 2007. Web. 13 Dec 2011..
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R EFERENCES Milsom, Keith. "Left Handed Tour." Left handed
fascinating Facts. Left Handers Day, n.d. Web. 13 Dec 2011.. "Fun
Left handed Facts." Questions Kids Ask about. askkids.com, n.d.
Web. 13 Dec 2011.. "25 Amazing Facts About Left Handed People."
leftyfretz.com. leftyfretz.com, n.d. Web. 13 Dec 2011..
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R EFERENCES Layton, Julia. "are left handers quicker thinkers
than righties?." discovery fit& health. N.p., n.d. Web. 13 Dec
2011.. Binns, Corey. "What makes a lefty:myths and mysteries
persist." Live Science. Live Science, 21 Mar 2006. Web. 14 Dec
2011..