Left-handed people can find it inconvenient to do certain things, writing in a notebook for example, but there are a number of advantages of being left-handed.
Research found that they were overrepresented among fighters in combat sports.
Left-handed fighters also had higher chances to win.
This confirms the fighter theory.
Left-handers may also be better at remembering events.
The explanation is that the two brain spheres of left-handers are more strongly connected.
Being left-handed might be a factor in mathematical ability.
An Italian study found that for simple arithmetic there was little difference between right- and left-handed performance,
but for more difficult problem-solving, left-handers won out.
No one understands the reason for this.
Left-handed people may think differently.
In one study, researchers showed the participants columns of abstract illustrations and asked them which ones they would prefer.
Left-handed people were more likely to prefer the images on the left.
Right-handed people preferred the ones on the right.
Both groups disliked stuff on their opposite side.
Left-handers are also overrepresented in professional, interactive sports. Researchers have looked at the influence of being left-handed on performance and interactive sports.
Those that require the fastest reaction give left-handers the biggest advantage.
So if you have a left-handed child, you should encourage them to play table tennis, baseball and tennis.
Being left-handed maximizes their chances of success in these sports.
Questions 22 to 25 are based on the passage you have just heard.
22. What does the passage say about left-handed people?
23. What is said to be special about left-handed people?
24. Why are left-handed people better at solving more difficult problems?
25. What should parents do about a left-handed child?