A new study has revealed why the vast majority of people are right-handed. According to scientists at the University of Oxford, right-hand dominance may be linked to the development of the human brain and the onset of bipedal movement.
elchi reports that approximately 90 percent of people in the world are right-handed. Many systems, from school desks to everyday objects, are designed for this majority.
For years, scientists have been trying to understand why humans are predominantly right-handed.
The link between research and walking
A new study from the University of Oxford has revealed that right-hand dominance is linked to the evolution of the human brain.
According to the study, this may be related to when humans began walking on two legs. The study states that traces of hand preference date back to very ancient times in human history.
Distinguished from primates
Researchers emphasized that hand usage is more balanced in other primate species, whereas humans prefer one hand.
According to scientists, the beginning of upright walking and the development of larger brains in humans have been influential in the prevalence of right-handedness.
Hand preference begins in the womb
The study showed that hand preference begins in the womb and develops until adolescence.
Experts state that environmental factors also play a role. Especially during childhood, using one hand more frequently can create physical differences in bone structure and muscle strength.
The brain can create new connections
Scientists state that using the non-dominant hand can create new neural connections in the brain.
Thanks to this process, called “neuroplasticity,” the brain’s movement and coordination areas can be strengthened. According to researchers, the dominant hand is superior in fine motor skills, while the other hand plays a more active role in balance and support tasks.
The world is still difficult for left-handed people
Although the study provides important clues about the biological basis of right-handedness, experts state that environmental influences still play a major role.
It is reported that left-handed people are still trying to adapt to a world designed for the right-handed majority in daily life.
Şayəstə