Why are some people left handed?

June 30, 2019, 5:08 p.m. -- Latest version
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One theory about this fact is related to different brain hemispheres.The result of this is that the left hemisphere controls the right side of the body and vice versa. The left hemisphere of the brain controls the function of the right side of the body and people who are left-handed their right hemisphere of their brain is more active .Other theory about this phenomenon is that left-handedness tends to run in families, it's assumed that left-handedness has a genetic component to it. In other words, left-handers are born that way.

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