Here is a fun fact! Around 10% of the world’s population are left-handed. So, since being a “southpaw” isn’t something common, it has long fascinated experts and ordinary people alike.
Lefties often navigate the world with a unique set of cognitive quirks. While they enjoy some pretty cool perks in certain activities, they also need to deal with the daily annoyance of living in a world built for right-handers. From how their brains are wired to their creative streaks and athletic prowess, left-handedness gives us a front-row seat to how the human brain adapts and succeeds.
The human brain is lateralized, which is a fancy way of saying that certain functions are processed more by one side than the other. For a lot of lefties, the right hemisphere, which we associate with such things as intuition, creativity, and spatial ability, seems to be in charge. According to Dr. Charlotte Reznick, a child educational psychologist and former UCLA professor who is a lefty herself, left-handers seem to have a “knack” for creative activities as opposed to logical ones.
Left-handed people may also process slightly differently by getting both sides of their brain get along better. This can, in turn, help them become more creative thinkers. Scientists believe that this is the exact reason why left-handed people show such unique cognitive behavior.
When it comes to the actual intelligence, research show that the numbers are a lot more balanced than the “tortured genius” stereotypes you see in media. A massive meta-analysis published in the Neuroscience & Biobehavioral Reviews journal, which saw data from 19 different databases in which over 16,000 people were included, found that for the average person there is no significant difference in the overall IQ between left-handed and right-handed people. In other words, the hand you write with is not a shortcut to a higher score on a standard intelligence test.
