Why Are Some People Double-Jointed?

From the creator

You might have a friend who is “double-jointed" and can bend their fingers in freaky ways. Why are they are so flexible? Hosted by: Stefan Chin ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: http://www.yalescientific.org/2010/05/why-are-some-people-double-jointed/ http://www.mayoclinic.org/diseases-conditions/dislocation/home/ovc-20234507 https://www.scientificamerican.com/article/people-who-are-double-jointed-are-more-likely-to-be-anxious/ https://ehlers-danlos.com/what-is-eds/ Image Source: https://commons.wikimedia.org/wiki/File:Hypermobile_(double_jointed)_phalangeal_joints.JPG https://upload.wikimedia.org/wikipedia/commons/8/8f/Doublejointedfinger.JPG https://commons.wikimedia.org/wiki/Category:Elastic_cartilage#/media/File:Elastic_cart_100X.JPG

Published 2017-05-02 · Watch on YouTube ↗
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