According to an Australian study published in 2006 in the journal Neuropsychology, left-handed people tend to have faster connections between the right and left hemispheres of the brain, which leads to quicker information processing.
Lfties seem to have a real advantage in interactive sports, such as boxing, fencing, tennis and baseball, but this advantage doesn’t extend to non-interactive sports, like gymnastics and diving. It’s possible that because of their different physical orientation and movements, lefties are able throw off right-handed opponents, who are used to going up against other righties.
Your dominant hand may determine how emotions are arranged in your brain. A 2012 study found that in left-handers, motivation was associated with greater activity in the right hemisphere of the brain, while the opposite was true of right-handers.
This may have important implications in caring for anxiety and mood disorders, which are sometimes treated using brain stimulation to increase neural activity in the left hemisphere.
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