|
About one ___1___
of ten people is left-handed. As the ___2___
of the population is right-handed, the left-handed
person may face problems in ___3___
his every day activities. For example, the
left-handed person may have difficulties ___4___
objects that are made for right-handed people. These
objects ___5___
can-openers, scissors and certain musical
instruments.
Why are some people left-handed ? One theory for ___6___
is that our body is 'asymmetrical'. This ___7___
that both halves of our bodies are not ___8___
the same. For example, your right foot may be
slightly larger than your left ___9___.
Your right hand may be different in appearance ___10___
your left. This kind of 'asymmetry' takes ___11___
throughout the entire body.
When we come ___12___
the brain, there is a left half and a right half as ___13___.
These ___14___
halves have very different functions. The left half
of the brain deals ___15___
logical functions such as reading and writing. The
right half, on the other ___16___,
helps us to think creatively. For people who are
right-handed, it is the left side of the brain ___17___
predominates. For left-handed people, however, the
reverse is ___18___.
For them, ___19___
is the right side of the brain that is dominant.
Thus, such people would tend to use the left side of
their bodies in ___20___
they do.
|
|
About one out
of ten people is left-handed. As the
majority
of the population is right-handed, the left-handed
person may face problems in
performing his every day activities.
For example, the left-handed person may have
difficulties using
objects that are made for right-handed people. These
objects include
can-openers, scissors and certain musical
instruments.
Why are some people left-handed ? One theory for this
is that our body is 'asymmetrical'. This
means
that both halves of our bodies are not
exactly
the same. For example, your right foot may be
slightly larger than your left
one. Your right hand may be different
in appearance from
your left. This kind of 'asymmetry' takes
place
throughout the entire body.
When we come to
the brain, there is a left half and a right half as
well.
These two
halves have very different functions. The left half
of the brain deals with
logical functions such as reading and writing. The
right half, on the other
hand, helps us to think creatively. For
people who are right-handed, it is the left side of
the brain that
predominates. For left-handed people, however, the
reverse is true.
For them, it
is the right side of the brain that is dominant.
Thus, such people would tend to use the left side of
their bodies in whatever
they do.
|
