According to statistics, about 85% of the world's population is right-handed, up to 10% of the world's population is left-handed, and even fewer are ambidextrous, people who can use both hands equally. So why has nature arranged it this way, and what is the secret of such a right-handed majority?
It turns out that lateralization, i.e. preference to use the left or right limb (hand and foot) is explained by the peculiarities of brain structure and functioning. Today's science knows that left and right hemispheres are responsible for managing different spheres and solving different types of tasks. But at the same time the hemispheres are connected by the intersection of nerves and the right hemisphere controls more the left part of the body and the left hemisphere controls the right part.
The left hemisphere is more responsible for logical and sequential thinking, which in ancient times was the key to human survival. Those with more developed left hemisphere were more likely to pass through natural selection. Such people were the smartest and shrewdest, able to adapt to surrounding conditions and quickly find a way out of critical and extreme situations. Many centuries have passed and a special code has been fixed in the human DNA: the left hemisphere is dominating and the right hand is leading. That is why most people are right-handed and left-handed people are a rare exception to this rule.