Around 90 Percent Of Humans Are Right-Handed – And Now We Might Finally Know Why
7 Articles
7 Articles
Why 90% humans are right-handed? Scientists finally find a fascinating answer
Scientists have uncovered a new theory for why most humans are right-handed. A major study suggests upright walking and a rapidly expanding brain were key evolutionary turning points. Early human ancestors likely showed mild hand preferences. However, as humans began walking upright and their brains grew, hand specialization increased. This led to the strong right-hand dominance seen in people today.
It turns out that probably our brain size and walking on two legs also have something to do with the fact that 90 percent of humanity prefers the right hand.
It is one of the most persistent and fascinating anomalies of our species. A detail so common that it has become invisible, and yet, a real scientific enigma for decades.
I'm left-handed, and despite persistent attempts to retrain me in kindergarten, the only thing I still do with my right hand is hold a spoon. As a child, I was often told about the "increased creativity" or "out-of-the-box thinking" of left-handed people, but I never noticed a significant difference. Perhaps the lack of a television in the house had a much greater impact on me.... The post Why is the world adapted for right-handers? first appear…
Nine out of ten people prefer the right hand for complex tasks, an overwhelming majority unparalleled in the animal world. A new study points out that this peculiarity is the evolutionary echo of two biological milestones of our species: walking upright and encephalization.
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