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Why Are Only 10% of People Left-Handed? Here’s What Scientists Know So Far – ScienceAlert

Are you a rightie or a leftie? No, we’re not talking politics here, we’re talking handedness. And unless you happen to have an abundance of left-handed friends, you might have noticed how rare they are. So why are just 1 in 10 of us left-handed?

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Are you a rightie or a leftie? No, we’re not talking politics here, we’re talking handedness. And unless you happen to have an abundance of left-handed friends, you might have noticed how rare they are. So why are just 1 in 10 of us left-handed?
While no one’s been able to definitively explain this, there are plenty of hypotheses that have been building for more than a century, and the evidence points to some kind of genetic influence. Why? Because the percentage of lefties is roughly the same,…

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