In an editorial appearing in a recent issue of The Lancet, Emory Rollins School of Public Health professor Dr. Howard Kushner contends that the connection between left-handedness and a raft of mental and physical disorders has gained currency since the 1980s and â€˜90s.
Although Kushner acknowledges a long history of suspicion surrounding left-handedness, he spotlights one Cesare Lombroso, a Turin physician who spent a great deal of time in and around the 19th century pointing a negative finger at left-handedness. Lombrosoâ€™s contemporaries mistakenly considered his studies, albeit mere observations, to be cutting-edge science.
Although scientific standards have changed since Lombrosoâ€™s time and todayâ€™s studies do not portray left-handedness with such profound negativity, Kushner says, â€œgeneral claims about the pathology of left-handedness persist.â€ This despite studies showing left-handers displaying exceptional intellectual and creative talents.
So, what are we to conclude about the connection between left-handedness and health? Kushner doesnâ€™t say. Instead, he asks us to consider that despite all the advanced scientific tools we have at our disposal, researchers should keep in mind that these very tools may not enable us to conclusively explain the mystery behind left-handedness and its meaning. Yet, we should not stop trying. After all, he says, todayâ€™s researchers are making solid contributions to such research–while raising provocative questions along the way.