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Left-Handedness Speech

Terms in this set (44)

Hook
The Latin word sinister comes from the phrase "on the left side"
Transition to Thesis
Why has left handedness been associated with evil or darkness and why are people left-handed in the first place?
Thesis
Left Handedness has had a large impact on society through the statistics and frequency of left-handedness, competitive and cooperative pressures, and the negative impacts of left handedness.
firstly
firstly
Introduction to Body Paragraph 1:
Moreover, throughout history left handedness has remained a consistent minority in all societies to varying degrees.
1.
1. 90% of people preferring to use the right hand for many tasks, and 10% the left hand.
2.
Handedness can now be observed as early as as early as four weeks post conception
3.
Left handedness also varies with gender
4.
Males more likely to be left-handed than females
5.
1. In a study from the National Library of Medicine left handedness in men and women appeared differently, in a high preforming study left-handed women performed better on visuospatial tasks while left-handed men performed better on verbosequential tasks.
6.
There are also numerous catalysts for left-handedness
7.
1. Birthweight, being part of a multiple birth, and the season of birth can impact handedness.
8.
1. Year of birth and country of birth surprisingly also had an impact on handedness
9.
In a study from Wales, the highest likelihood of left handedness was females born in the summer.
Introduction to body paragraph two
Additionally, in human history, competitive pressures and cooperative pressures have influenced left handedness, as well as a left-handed combat advantage.
a.
1. In competitive societies there are higher rates of left handedness
b.
1. Left handedness gave fighters an advantage when hand-to-hand combat was a means of survival.
c.
1. Left handedness tends to grow in a population until the advantage of left handedness disappears.
d.
In societies with more cooperation, more members will tend to be on one side.
e.
In countries and societies with high rates of cooperation, there are lower rates of left handedness.
f
Having the same dominant hand would also come in handy for the sharing of tools.
g
Cooperation in societies keeps the left-handed population in the minority.
1 1
Left handers can also experience a combat advantage in sports
2 2
As Left-handed individuals are over presented in combat sports
3 3
Left handers have an advantage due to their opponents not being able to anticipate their movement and formulate strategies to combat it.
4 4
1. 1/3 of Major League Baseball players are left-handed.
5 5
However
6 6
There is only a left-hand advantage in sports were here is direct contact with an opponent
transition to Body Paragraph 3
Finally
Introduction to Body Paragraph 3:
Left Handed individuals have been met with negative effects and societal confirmative pressures throughout history.
one
There is s association between left handedness and some disorders
two
A 2011 study from the American College of Chest Physicians suggested that left handers have significantly higher chances of developing periodic limb movement disorder (PLMD)
three
In a study with patients that have psychotic disorders like schizophrenia and schizoaffective disorder, 40 percent of the patients reported writing with their left hand.
four
A study from the British Journal of Cancer suggested that women with a dominant left hand have a higher risk of being diagnosed with breast cancer than women with a dominant right hand.
five
Left-handed people suffer accidents more frequently
six
A Canadian study found that 52% of college students who were left-handed had accidental injuries that needed medical attention

compared to 36% of right-handed people in the last two years.
seven
The reason why is because society and tools have been built for right-handed people
eight
Throughout history, many left-handed induvials were forced to use their right hand. This practice still continues in some parts of the world
nine
Historically, left handedness was seen as being witchcraft and evil and many were forced to switch hands, such as former U.S. president Harry S. Truman
ten
In China, 1% percent of the population is reported to be left-handed

as many students were forced to switch
eleven
In many cultures, the right hand is seen as clean and the left is not, so being left-handed could be seen as disrespectful.
transition to conclusion
In conclusion
Conclusion
left handedness has had a large impact in human history through the statistics and frequency of left-handedness, competitive and cooperative pressures in society, and the negative effects associated with left handedness.
Ending
So, do you think left handedness is evil or an unusual advantage?
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