Lefty universe - Left-handed products and curiosities
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About 10% of the population worldwide covers this feature. The genetic factor seems decisive in the topic with families with high prevalence of left-handed people. If both parents are right-handed, the possibility of the child being left-handed is 2%; If one of the parents is left-handed, the prevalence increases to 17% and if they are both, it exceeds 46%.

Very recently, the "LRRTM1 gene" (named "zombie gene") has been confirmed, located on chromosome 2, but scientists believe that there are at least 27 genes involved in the so-called cerebral cortical asymmetry.

According to the scientists, these people have more developed the right cerebral hemisphere and more accurately use the lower and upper limbs of the left sector.