Why Are Some People Left-Handed?

The science of their sinister ways…
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We've got two perfectly good hands attached to two perfectly good arms, so why do most people prefer to use one over the other for common tasks?

David Wolman’s “A Left Hand Turn Around the World” http://amzn.to/1wYqOS2
(lots more references in there!)

Chris McManus’ “Right Hand, Left Hand” http://amzn.to/1umztyL

The best collection of the science of handedness on the internet: Right, Left, Right, Wrong - http://www.rightleftrightwrong.com/index.html

Genetic link between handedness and body asymmetry: http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1003751

A gene associated with handedness and schizophrenia: http://www.nature.com/mp/journal/v12/n12/abs/4002053a.html

Genetic theories of handedness: http://www.rightleftrightwrong.com/theories_genetic.html

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Last week’s video:
Ebola - The Full Story https://www.youtube.com/watch?v=B44JfptNuG0


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