Researchers from the University of Washington discovered a link between left-handedness and a prominent facial feature. Left-handedness have been associated with several traits and features over time, but now they added slender faces on the list.
Scientists argue that people who display convex facial features and have a more slender line of the jaw are more likely to be left-handed. They gathered all the evidence in a study which can be consulted here.
Many left-handed people have slender facial features
To develop this study, the researchers used results gathered from three national surveys which involved 13,536 participants. These surveys analyzed, among others, the facial profiles of people. Thus, those who had slender faces and convex features were 25 percent more likely to be left-handed.
Although it sounds odd, it is not so unusual that these two traits are related, since they are not so widespread in the United States. Around 10 percent of the Americans fit into the left-handedness category, while convex jawlines are also uncommon. Around one in five Americans has a slender face.
This might raise a lot of frustrations, as the American beauty standards put slender faces at high acclaim. Also, the weight obsession is a reality, and more people are trying more desperate measures to lose weight and to conform to the standards of society.
Such physical traits might not only be related to left-handedness
However, having a pretty face might come at a price. Besides linking such physical traits to left-handedness, the study also discovered a dangerous connection. Slender jaws might also be related to tuberculosis.
This hypothesis arose around 2,000 years ago, as a Greek physician thought that convex faces might be related to the development of this disease. Although you might think that such old opinions must be wrong, further studies proved the theory true.
Both studies and clinical observations marked a slender figure as part of the overall appearance of people susceptible of developing tuberculosis. Usually, people with such facial traits are slim and have a low body weight, and these are also typical of tuberculosis patients.
The authors of the study say that all three traits must be related. As evidence, they offer the case of the United Kingdoms, which has the highest number of left-handed people, people with slender faces, and sufferers of tuberculosis. However, more evidence is needed in support of this final hypothesis.
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