What are the advantages and disadvantages of being
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Transcript What are the advantages and disadvantages of being
WHAT ARE THE ADVANTAGES
AND DISADVANTAGES OF BEING
LEFT-HANDED?
By: Brianna Philipsen
Science 7
INFORMATION ON LEFT HANDERS
10%
of the world’s 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 ½ times more likely to be left
handed then females
INFORMATION 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
DISADVANTAGES
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
DISADVANTAGES
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 won’t be able to roll
your tongue
They have trouble with scissors and
binders
ADVANTAGES
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
FUN FACTS ABOUT LEFT HANDED PEOPLE
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
FUN FACTS ABOUT LEFT HANDED PEOPLE
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
ANIMOTO
REFERENCES
Hirshon, Bob, auth. "South Paw Minority." South
Paw Minority. Advancing Science Serving
Society, 18 Apr 2008. web. 08 Dec 2011.
<http://sciencenetlinks.com/science-news/scienceupdate/southpaw-minority/>.
Wheat, David. "Science in Action." Science
Update. Science Update, 07 Dec 2004. Web. 08
Dec 2011. <http://sxxz.blogspot.com/2004/12/areyou-left-handed-do-you-know.html
REFERENCES
Ulken, Eric. "Fun Facts about left handedness."
Seattle Times. Seattle Times, 16 Jun 2003. Web.
12 Dec 2011. <http://ulken.com/2003/06/16funfacts-about-left-handedness/>.
Leen, Leen. "left handedness and right
handedness." left handedness and right
handedness. xanga.com, 08 Oct 2007. Web. 13
Dec 2011.
<http://bubbiosity.xanga.com.com/620314158/lefthandedness/>.
REFERENCES
Milsom, Keith. "Left Handed Tour." Left handed
fascinating Facts. Left Handers Day, n.d. Web. 13 Dec
2011. <http://www.lefthandersday.com/tour6.html>.
"Fun Left handed Facts." Questions Kids Ask about.
askkids.com, n.d. Web. 13 Dec 2011.
<http://askkids.com/resource/Facts-on-Left-HandedPeople.html/>.
"25 Amazing Facts About Left Handed People."
leftyfretz.com. leftyfretz.com, n.d. Web. 13 Dec 2011.
<http://leftyfretz.com/25-facts-about-left-handedpeople/>.
REFERENCES
Layton, Julia. "are left handers quicker thinkers
than righties?." discovery fit& health. N.p., n.d.
Web. 13 Dec 2011.
<http://health.howstuffworks.com/humanbody/parts/left-handed.html>.
Binns, Corey. "What makes a lefty:myths and
mysteries persist." Live Science. Live Science, 21
Mar 2006. Web. 14 Dec 2011. <
http://www.livescience.com/655-lefty-mythsmysteries-persist.html>.