le=”text-align: justify; “>Right-handers have long accounted for 90 percent of the population, and scientists may have figured out why.
Only one out of every 10 people are predisposed to favor their left hand instead of their right, “a ratio that has remained constant for more than 5,000 years,” says Rick Nauert at PsychCentral. Why isn’t there a 50-50 righty-lefty split? Why aren’t all of us right-handed? New research from Northwestern University may have the answer. Here’s what you should know:
What exactly is this new theory?
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