Why are some people left-handed?
Gene involved in cell shape offers clues on left-handedness
What do Lady Gaga, Barack Obama, Bill Gates, Paul McCartney and Justin Bieber have in common with Jimi Hendrix, Judy Garland and David Bowie? They are all left-handed, a trait shared by roughly 10% of people.
But why are some people left-handed while most are righties? That is an area of active research, and...
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