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The human heart beats up to 3 billion times over an average lifespan. Learn about the anatomy of the heart and how this muscular organ provides life-giving oxygen throughout the body.➡ Subscribe: http://bit.ly/NatGeoSubscribe#NationalGeographic #Hearts #EducationalAbout 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/NatGeoOfficialSiteFacebook: http://bit.ly/FBNatGeoTwitter: http://bit.ly/NatGeoTwitterInstagram: http://bit.ly/NatGeoInstaRead more about Heart here: https://on.natgeo.com/2YA2rwHHeart 101 | National Geographic https://youtu.be/GMBSU-2GK3ENational Geographichttps://www.youtube.com/natgeo
