Why Our Brains are Split Into Right And Left

The reason behind our brain being split into right and left

For ages we have been taught that the right part of the human brain is associated with creativity while left brain is logical. This particular widely accepted dichotomy very cleverly dissects the brain into two equal proportion which deals with very specific set of intelligence but a recent has revealed that such division is wrong. In other words research has simply pointed that human brain can’t be divided into hemisphere as well as labelled with specific set of intelligence which defines a human being.
The left and right hemisphere of brain

Physically both hemisphere of the brain happens to be nearly identical and it was in 19th century when physicians started noticing there are some definite differences between the two hemispheres. Researchers were trying to answer the universal question of why the human brain is split in two hemispheres.

The reason behind our being divided two different hemispheres is fairly simple as it helps in delegating different tasks to different sides of the brain. This shows the might of the brain in handling the complexities of the world in a smart and influential manner. Further humans can also make use of the both the sides of the brain to focus on a single tasks or at different tasks without any issues.

With the evolution our brains had become adapted in using both hemispheres at the same time even for different work which is also known as parallel processing. But as an individual grows he started depending or showing preference to one side of the brain more than the other which has helped in shaping the common notion that left side is widely associated with creativity while right is associated with logic. 

Lots of experiments & researches yet fewer answers

Over the years a number of research works has been done to find right kind of asymmetries to define how the human brain works. Quite interestingly experiments with the genes has helped in affirming that the lateral asymmetries of the brain known to influence our decisions to a great extent.

 It is fascinating to note that more than 40 genes get implicated in order to determine whether an individual turn to be a right or left handed and certainly the environmental factors also plays a vital role in it. Some genetic studies have even stated gender also plays a crucial role along with the genes in order to determine which hand we are likely to prefer.

Researchers have found a unique bias in human for the right side, which is not just contained to the hands. It will come as a surprise that the babies likely to suck their right thumb and happens to turn their heads in the right direction while lying down.

A vast majority of people had been seen turning their heads towards the right side while going for a kiss. So it can be easily assumed that environmental factors play a major role rather than the genes when it comes to choosing the right or left side preference.