There are not so many ambidextrous people, that is, people who are equally good with both hands – basically, we use only one hand to perform everyday tasks, and most often the right one.
The question of what motivates people to favor one hand and why right-handers are dominant has long kept scientists awake at night.
As a result of the research, it was discovered that the tendency towards a certain hand manifests itself at a very early age, or, to be more precise, in the womb, when the baby sucks the thumb of one hand.
The same scientific research has shown that there is no gene for right-handedness or left-handedness, but DNA plays a certain role in the ability to control one's hands.
The research found that four regions of the genome are generally associated with left-handedness.
Three of them are related to the development and structure of the brain.
Experts suggest that an analysis of the biological characteristics of left-handers will allow us to better understand how the brain forms the specialization of the right and left hemispheres.
In general, this is all that scientists know at the moment - the answer to the question of why a person chooses a dominant hand and why it most often becomes the right hand has not been found.
Earlier we talked about how to understand that a person hates you .
