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Left-handedness is a condition when a person predominantly uses their left hand to carry out daily activities, such as eating, writing or playing music. Apart from the left hand, a left-hander's left foot can also be more dominant, although this is not always the case.

A left-hander is often considered to have special features, both in motor skills and way of thinking. It is estimated that around 10% of the world's population are left-handed. This means that around 700 million people throughout the earth are left-handed.

Whether a person is left-handed or not can be seen from childhood, usually after he is 2 or 3 years old. However, after that age, a child's dominant hand can still change.

Instead of eliminating the habit of using the left hand, some Left-handed people actually have ambidextrous abilities. This can also happen to some people who are right-handed dominant. When he trains regularly and uses his left hand, he can become ambidextrous.

This shows that left-handedness cannot be completely eliminated and is basically not a medical disorder, but a normal thing .

Some interesting causes of left-handedness to pay attention to

Until now, the reasons why someone uses their left hand dominantly is still unclear and continue to be researched. However, there are several factors that can explain how this condition can occur, including:

Fetal development

The tendency to become left-handed begins to appear during the fetus 9–10 weeks old. At this stage, the fetus begins to be able to move its arms and suck its thumb. If the fetus sucks its left thumb more often, it could be that it will be born left-handed.

Factors that might cause this are developmental different brains. If the right brain of the fetus is dominant, left side body movements, including the hands, will also be dominant.

Genetic factors

Genetic factors, especially those inherited from parents, are also known to be the cause of why someone can be left-handed. Some research suggests that most left-handed people have one or both parents who are also left-handed. However, there are also left-handed people whose parents both dominantly use their right hand.

Habit since childhood

Apart from genetic factors or brain development, the reason a person can become left-handed cannot be separated from stimuli or habits from childhood. 

Several research shows that children are accustomed to using their left hand since childhood to carry out various activities, such as playing, writing and playing. musical instruments, over time they can become dominant in using their left hand and become left-handed. 

Left-handedness and Various Unique Facts About It

People who dominantly use their left hand they say they are more creative, is that true? So, here are some unique facts about left-handed people that are still rarely known:

1. World Left-Handed People's Day

August 13 is known as World Left-Handed People's Day. This celebration was first initiated in 1992 by Left-Handers Club. The main aim of this celebration is to increase public awareness and concern for left-handed people.

2. Doesn't necessarily affect the feet

Left-handedness does make the left side of the body more dominant, but this doesn't always apply to the feet. Research shows that someone who is left-handed can have a dominant right foot. However, the possibility of a left-hander having a dominant left foot is still greater.

3. Suitable for working in creative industries

Left-handed people may be more suitable for working in creative industries. This is thanks to his right brain function which is quite dominant. The right brain itself plays an important role in regulating a person's creativity, so left-handed people are more suitable to work in creative industries, such as painting, music and fine arts. 

However, creativity in general is also found in people who are right-handed dominant. So, this needs to be adjusted to each individual.

4. Many famous people turn out to be left-handed

Many successful and famous people turn out to be left-handed. Famous left-handed people around the world include Barack Obama, Jimi Hendrix, and Bill Gates. These world-famous left-handers are very successful people in their respective fields.

5. Special equipment for left-handed people

Left-handed people often have difficulty using equipment designed for right-handed people. To make it easier to understand, if you prefer to use your right hand, try writing, combing, holding objects and doing other activities with your left hand. It's difficult, isn't it?

Well, left-handed people experience the same difficulty whenever they use equipment designed for right-handed dominants. Fortunately, there are various products designed for left-handed people, such as kitchen utensils, stationery and office equipment, which can make activities easier for left-handed people.

If you still have other questions about left-handedness, or there are people close to you who are experiencing difficulties because they were born left-handed, don't hesitate to consult a doctor online via Chat with a Doctor.

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