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Why Are Some People Left-Handed?

Why Are Some People Left-Handed?

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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/in...

Genetic link between handedness and ...

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WEB AND NEWS

  • news.yahoo.com    Why so few people are left-handed - Yahoo News

    Apr 27, 2012 · Right-handers have long accounted for 90 percent of the population, and scientists may have figured out why ... Why so few people are left-handed.

    http://news.yahoo.com/why-few-people-left-handed-154000675.html

  • www.buzzle.com    Myths and Facts About Left-handed People - Buzzle

    Left-handed people are many a time at a disadvantage using tools designed for the right-handed. Well this is true, ... at some stage in their life, ...

    http://www.buzzle.com/articles/myths-and-facts-about-left-handed-people.html

  • chestofbooks.com    Why Some People Are Left-Handed - …

    Are you left-handed? If you are, very likely it worries mama and papa and all your teachers. It shouldn't worry them. And really it is a great waste of useful time to ...

    http://chestofbooks.com/reference/The-New-Student-s-Reference-Work-Vol5/Why-Some-People-Are-Left-Handed.html

  • www.betterhealth.vic.gov.au    Left -handedness | Better Health Channel

    Jan 13, 2014 · ... and it is possible for two right-handed parents to have a left-handed child. Left-handed people ... left-handedness. Fetal development – some ...

    http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/Left-handedness

  • dailyinfographic.com    Left Handed Facts and Statistics [infographic]

    ... and according to some of my left handed friends and family, ... Some people believe that left handed people should conform to using both hands equally.

    http://dailyinfographic.com/left-handed-facts-and-statistics-infographic

  • www.scientificamerican.com    Is It True That Left-Handed People Are Smarter Than …

    Giant Squid and Whale Sharks Not as Big as People Think - Scientific American The Science of the Great Molasses Flood - Scientific American

    http://www.scientificamerican.com/article/is-it-true-that-left-handed-people/

  • zidbits.com    Why Are Right-Handed People More Common? - …

    Why is it more common? ... Ongoing research may shed some light on the finer details ... That might be where the myth that left handed people tend to be more ...

    http://zidbits.com/2011/11/why-are-right-handed-people-more-common/

  • www.washingtonpost.com    Why are so few people left-handed?

    But as Joe explains in his video, the theory isn't totally straightforward -- because most people who are left-handed have their speech centers on the left side, too. So the theory would explain why most of us are right-handed, but not why some of us go ...

    Washington Post   •   5 years ago

    http://www.washingtonpost.com/news/speaking-of-science/wp/2014/11/03/why-are-so-few-people-left-handed/

  • www.smithsonianmag.com    Why Are Some People Left-Handed?

    For the left-handed people of the world, life isn’t easy. Throughout much of history, massive stigmas attached to left-handedness meant they were singled out as everything from unclean to witches. In Medieval times, writing with your left-hand was a ...

    Smithsonian.com   •   7 years ago

    http://www.smithsonianmag.com/science-nature/why-are-some-people-left-handed-6556937/

  • espn.go.com    Why this could be Townsend's time

    She's a left-handed serve-and-volley player who can hit from the baseline ... Maybe Radwanska should be a hold, but as they say, if you're not moving forward, you're moving backward. Some people's New Year's …

    Howard Bryant   •   ESPN   •   5 years ago

    http://espn.go.com/tennis/story/_/id/12143222/australian-open-why-taylor-townsend-wta-tour

  • io9.com    Why Are So Few People Left-Handed?

    To celebrate, let's look at why only around one in ten people is left-handed. Why, pray tell ... and most neural activities are shared between the hemispheres to some extent, but we can definitely say that many functions are primarily handled by one ...

    Io9   •   6 years ago

    http://io9.com/why-are-so-few-people-left-handed-1621011048

  • braves.scout.com    Why pick Markakis over Heyward?

    Some people remain perplexed the Braves traded Jason Heyward ... They want to ignore his putrid batting average against left-handed pitchers. He’s hit .221 in his career against southpaws, compared to .281 against …

    Braves Scout   •   5 years ago

    http://braves.scout.com/story/1499242-why-pick-markakis-over-heyward

  • blogs.kqed.org    Why Are So Many People Right-Handed? Genetic Research May Hold The Clues

    But now it looks like scientists may finally be starting to make some progress ... to go in figuring out why people are usually right-handed. It’ll be interesting to see if being right-handed was selected for, being left-handed selected against or ...

    KQED   •   6 years ago

    http://blogs.kqed.org/science/2013/09/23/why-are-so-many-people-right-handed-genetic-research-may-hold-the-clues/

  • www.truthdig.com    Scientists Still Don’t Really Know Why Some People Are Left-Handed

    We know people (including this blogger) have been left-handed since humans painted caves, but the origin of this mutation—genetic, chemical or other—remains a mystery. It may be an abundance of testosterone or just a womb preference that continues …

    Peter Z. Scheer   •   Truthdig   •   7 years ago

    http://www.truthdig.com/eartotheground/item/scientists_still_dont_really_know_why_some_people_are_left_handed_20130814

  • www.theatlantic.com    Why Lefties Make Less

    There’s a stereotype that left-handed people are clumsier, but that might have something ... are more likely to affect lefties than righties. Determining why those disadvantages arise is more difficult—there doesn’t seem to be one clear cause of ...

    The Atlantic   •   5 years ago

    http://www.theatlantic.com/business/archive/2014/12/why-lefties-make-less/383635/

  • www.independent.co.uk    Why are left-handed people so brilliant?

    Why are more men left-handed than women, and why do left-handers account for only one in 10 people worldwide? What we do know is that the cack-handed are disproportionately brilliant. Albert Einstein, Leonardo da Vinci, Aristotle, Julius Caesar and …

    The Independent   •   6 years ago

    http://www.independent.co.uk/voices/comment/why-are-lefthanded-people-so-brilliant-8919135.html

  • www.livescience.com    Left-Handedness Stumps Science

    Yet despite decades of research, very little is known about why some people are left-handed. Scientists have proposed causes ranging from genes, to damage in utero, to an edge in fistfights to explain why southpaws make up 10 percent of the world's …

    Live Science   •   7 years ago

    http://www.livescience.com/28754-why-people-are-left-handed.html

  • www.smithsonianmag.com    Why Are Some People Left-Handed? | Science | Smithsonian

    For the left-handed people of the world, life isn’t easy. Throughout much of history, massive stigmas attached to left-handedness meant they were singled out as ...

    http://www.smithsonianmag.com/science-nature/why-are-some-people-left-handed-6556937/

  • www.youtube.com    Why Are Some People Left-Handed? - YouTube

    Nov 03, 2014 · The science of their sinister ways… Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter ...

    http://www.youtube.com/watch?v=NPvMUpcxPSA

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