Scientific theories about people that are left-handed
The science of being left-handed is not explored enough by the people who actually claim to be left-handed. Maybe that is why scientists have had to study them to arrive at the results of curious exploration into the human body and mind. For unlike some animal and bird species that adapt to laboratory experiments, human beings cannot be subjected to prolonged and intrusive observations. This makes the human being perhaps one of the only living mammals to remain a huge mystery to understand in its entirety. Nevertheless, evolution has taught us that we explore ourselves a lot more even as we sow, build and conquer. Not every human endeavor is absolutely constructive. We face a host of issues that threaten our very survival after centuries of trying to bring peace to the world.
Evolution has helped the entire human race seek common goals and aspirations have merged to bring global value to lofty ideals. Yet, our differences are of a magnitude so big that they cloud our perceptions about each other. A man from China is unable to speak to a person from Afghanistan, their languages are completely unique to their cultures. Behavior is readily accepted as a criterion for judgment, but actions are unfathomable as they are rooted in individual differences. One such difference is between the rare left-handed and the ubiquitous right-handed person. Scientific theories on evolution draw a comparison between chimpanzees who divide their work by choosing the left and right hands in a classic 50-50 ratio. Human beings do not do the same. The ratio between left-handed and right-handed people is 10-90. Clearly, the balancing act manifested in the usage of hands by chimpanzees is one that does not fit the human organization.
Gene theory purports to see left-handedness as a coded phenomenon. What we are as people has a lot to do with how our ancestors lived out their left or right-hand preferences. But there is no one gene that defines the entirety of our behavior regarding hand movement. There are about 40 genes that carry information on hands.
The brain is one of the least understood organs in man. We know that it is divided into the left hemisphere and right hemisphere. Yet, there is very little information we have on how left-handed or right-handed choice is factored into our behavior. Right-hand side information is usually stored in the left brain, and the right brain supports left-hand actions. But all surmising stops at this thesis. Some left-handed people do not have all their language abilities stored in the right-handed brain. Here, the ratio 90—10 for the right hand—left-handed people do not apply. Hence we need another scientific attempt at discovering left and right-handed behavior.
Left-handed contribution to scientific theories can perhaps be revolutionary in our understanding of how the human brain is the same, and at the same time different for every individual. Perhaps more participation and observation by individuals themselves can lead to a scientific breakthrough in our living generations. That much can be unraveled in the past through concrete observations of left-handed behavior is evident in what we have managed to know so far. The pursuit of developing scientific theories further is essential to human discovery and potential.