The difference between left-handed and right-handed people

First of all, the reasons are different.

1, lefty: The main causes of lefty are genotypic lefty, phenotypic lefty, pathological lefty and pseudo-lefty.

2. Right-handed: In most activities, an object can only get more light in the direction of human right hand, so according to the instinct of "avoiding danger", animals will choose the side of "seeing clearly" to "touch" it. Over time, the frequency of using the "right hand" is naturally higher than that of using the "left hand", thus "evolving".

Second, the characteristics are different.

1, Left-handed: Drawing, writing and reading are very different.

2. Right-handed: Left-handed people tend to have the right brain.

Third, the impact is different.

1, left-handed: In daily life, left-handed people constantly encounter problems that need a lot of energy to solve.

2. Right-handers: For right-handers, the "sensor" (the smallest particle of feeling) obtained by the "right hand" is much richer than that of the "left hand".

Baidu encyclopedia-right-handed

Baidu encyclopedia-left-handed