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For the first time, a team of scientists was able to find a genetic hierarchy associated with the use of the left hand.

Scientists believe that this genetic chain also has a significant impact on the functioning of the human brain, particularly in relation to the use of languages to speak.

The Oxford University research team revealed that people who use the left hand have more speech skills than others, as a result of this gene chain leading to the use of the left hand.

Nevertheless, there are many secrets and questions that the study has not been able to answer in relation to the relationship between the way the human brain works and the use of one hand more than the other.

What does that tell us?

Nearly 10 percent of humans use the left hand more basically than the right, and previous studies have revealed that genetic and genetic factors inherited from parents play a big role.

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However, scientific research has not been able to reveal all the secrets of this matter so far.

The research team returned to the British Biobank and reviewed the records of some 400,000 people and discovered that more than 38,000 of them were using the left hand.

How does that happen?

The team found that mutations occur in the complex genetic chain that regulates within the cells of the body, called 'cytoskileton', i.e. cellular structure.

Scientists trackasome of a similar type of genetic chain in snails, which changes the formation of the cellular structure so that the curvature of the shell is tilted to the left rather from the right.

However, this difference has a significant impact on snails because snails with right-handed shells cannot reproduce sexually with snails with left-leaning shells because of the different location of each's genitals.

Studies of x-rays obtained by the research team from the British Biological Bank have shown that cytoskileton contributes to changing the structure of white matter in the brain.

"For the first time in human history, we discover that the cytoskileton responsible for using one hand can be clearly seen in brain tissue," said Professor Gwenalyd.

The study also revealed that people who use the left hand have a slightly higher risk of schizophrenia and slightly less likely to develop Parkinson's disease.

The bottom line is that the number of
So far, there appears to be a genetic responsibility for the use of one hand in humans, which is about 25 percent responsible, while other environmental factors control the other 75 percent.

Scientists have discovered only less than 1 percent of the genetic chains responsible for this, so more studies are needed to understand the effect of genes on human use of their hands.

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