When a little girl held a pen to write for the first time, something weird happened: She was left-handed without any hereditary. The family started a heated discussion about the rectification since in China, the left means inauspicious. Ironically, many Chinese treat left-handed people as intelligent and gifted ones. However, when this case comes to their children, they will definitely say ‘No, correct it!’ maintaining a firm attitude. The traditional culture tells us to be unified rather than unique. Consequently the left-handed girl was forced to change her original writing habit. I was exactly the main protagonist of this story.
When I grow up, I have become an ambidexter, using my right hand to write and left hand to do the other things. I try my best to adjust to the general hand preference; however, there are still many conflicts. When I use left hand for meals, I may bump against others’ right hand. When I use scissors, it’s quite inconvenient as the scissors are designed with their sharp blade on the right side. When I look around, I find that all the people are right-handed except me; all the staff is designed especially for the right-handed people. Such phenomenon encourages me to consider that what factors contribute to people’s inherent left-handed preference.
There are many theories trying to explain factors that influence the hand preference. The first one is called anatomical theory, which we are all aware of. This theory states that our left hemisphere controls the right part of body, while our right hemisphere controls the left part of body. Aristotle believes that our right part of body is originally more dominant than the left. That’s why about 90% people on the world are right-handed. The second is called genetic theory, which states that if both parents are left-handed, children are more likely to be left-handed. However, more and more genome-wide association studies conducted show that this theory doesn’t prove the correlation between parents’ hand preference and children’s hand preference. The third popular theory aroused by neurologists at Harvard in 1980s gives the following explanation: when left-handed people were still in their mothers’ wombs, they experienced a dislocation of brain due to the high level of testosterone, which changed the hand preference. The dispute seems never come to an end. Until now, the psychology study of this field has not conceived any persuadable explanatory for what affects the hand preference.
As a person who once suffered from the social stigma and repression of left-handedness, it may be more perusable to say ‘Stop the bias toward lefties!’ We are indeed the 10% in the world, but we didn’t break the law. There’s no need to be uniform in every single thing. Right is right, left is also right.