It is easy to forget how dangerous swimming underwater can be, especially when discussing free diving. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get more Science of Stupid: https://on.natgeo.com/36JdVV5 About Science of Stupid: Science of Stupid shows the world's funniest fail clips and uses science to examine them. About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta The Dangers...
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