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What was the study behind right-head or left-head babies?
Babies that preferred to lay with their heads to the right grew to be right handed, and babies that preferred to lay with their heads to the left grew to be left handed.
What are left handers more numerous than usual in?
Among those with reading disabilities, allergies, and migraine headaches.
In Iran, what is the pattern with left handedness?
Outperform righties in all subjects on university entrance exams.
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