August 13th is “Left-Hander’s Day.” Launched in 1996, this yearly event celebrates left-handedness and raises awareness of the difficulties and frustrations left-handers experience every day in a world designed for right-handers.
Tests conducted by St. Lawrence University in New York found that there were more left-handed people with IQs over 140 than right-handed people. Famous left-handed intellectuals include Albert Einstein, Isaac Newton, Charles Darwin, and Benjamin Franklin.
In many Islamic countries, people are forbidden to eat with their left hand, which is considered “unclean” because it is used for cleaning the body after defecation. Additionally, “public display” or use of the left hand is against the law in some Islamic countries, including Saudi Arabia.
The gene LRRTM1 is a strong contributing factor for left-handedness. Scientists discovered the gene during a study of dyslexic children and believe it is inherited from the father.
Connections between the right and left sides of the brain are faster in left-handed people. This means information is transferred faster, making left-handers more efficient in dealing with multiple stimuli and using both sides of the brain more easily.
Ultrasounds show that in the womb, 90% of babies appear to favor the right thumb, which corresponds to population breakdowns of right-handers and left-handers.
Juniata College in Huntington, Pennsylvania awards up to $1,500 in academic scholarships to students who have top academic records and who are left-handed.
There are two divergent theories regarding wearing the wedding ring on the left hand. One theory is that it started with the ancient Egyptians, who believed that despite the left hand’s supposed flaws, placing the ring on this hand brought it nearer to the heart. Another theory attributes the origin to the Greeks and Romans, who wore the rings to ward off evil associated with the left hand.
When placed on their tummies, right-handed babies tend to turn their heads to the right. Left-handed babies usually turn their heads to the left or they don’t show any preference.
Studies have shown that if a left-hander injures his dominant hand, he has an easier time learning to use the other hand than his right-handed counterparts.
In a recent experiment, left-handers who watched an eight-minute clip from the film Silence of the Lambs showed more fear than right-handers. Scientists believe that this may be because the right side of the brain is dominant in lefties and is more involved in fear responses.
According to the Journal of Nervous and Mental Disease, the brains of left-handers process emotions differently than those of right-handers and are more susceptible to negative emotions, such as anger.