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Most of the current research suggests that left-handedness has an epigenetic marker — a combination of genetics, biology and the environment. Because the vast majority of the population is right-handed, many devices are designed for use by right-handed people, making their use by left-handed people more difficult. [9]
That is an area of active research, and a new study sheds light on a genetic component of left-handedness in some people. ... shape of cells and found them to be 2.7 times more common in left ...
Left-handed pen nibs are not generally easy to find, and strokes may have to be done backwards from traditional right-handed calligraphic work rules to avoid nib jamming and splatter. Left-handed people have an advantage in learning 19th-century copperplate hands, which control line-width by pressure on the point. [citation needed]
A study done by the Department of Neurology at Keele University, North Staffordshire Royal Infirmary suggests that forced dextrality may be part of the reason that the percentage of left-handed people decreases with the higher age groups, both because the effects of pressures toward right-handedness are cumulative over time (hence increasing ...
An older study found that left-handed people were better at "divergent thinking", and a more recent research cites lefties have better working memories and mental flexibility. 5. Don't get too ...
About 10% of people in the world are left-handed. Lefties have to endure lots of little daily struggles righties might not think about. Swiping credit cards and cutting with scissors are just two ...
A 1967 study by Douglas found no evidence to correlate mathematical ability with left-handedness or ambidexterity. The study compared the people who came in the top 15% of a mathematics examination with those of moderate mathematical ability, and found that the two groups' handedness preferences were similar.
Left-handed people make up about 10% of the population, and southpaws are often known to be incredibly creative. ... as studies have shown left-handed people are often better at solving math problems.