Oxygen’s surprisingly complex journey through your body – TED Talks by Enda Butler

Oxygen forms about 21% of the air around us. In your body, oxygen forms a vital role in the production of energy in most cells. But if gases can only efficiently diffuse across tiny distances, how does oxygen reach the cells deep inside your body? Enda Butler tracks the surprisingly complex journey of oxygen through your body.

Lesson by Enda Butler, animation by Compote Collective.

View full lesson: http://ed.ted.com/lessons/oxygen-s-su…

What happens during a stroke? – Vaibhav Goswami, TED-Ed

Every two seconds, someone in the world has a stroke. One out of every six people will have a stroke at some point in their lives. Strokes deprive brain cells of oxygen and are one of the most common causes of death, and a leading cause of preventable disability. But what causes strokes in the first place? And what can doctors do to treat them? Vaibhav Goswami takes us into the body to find out.

Lesson by Vaibhav Goswami, animation by Artrake Studio.

Check out our Patreon page: https://www.patreon.com/teded

View full lesson: https://ed.ted.com/lessons/what-happe..

Thank you so much to our patrons for your support! Without you this video would not be possible! John Saveland, Nicolle Fieldsend-Roxborough, Mridul Goswami, Venkat Venkatakrishnan, Sandy Nasser, CG Nobles, QIUJING L BU, Yoga Trapeze Wanderlust, Jaron Blackburn, Alejandro Cachoua, Thomas Mungavan, Elena Crescia, Edla Paniguel, Sarah Lundegaard, Charlsey, Anna-Pitschna Kunz, Tim Armstrong, Alessandro, Erika Blanquez, Ricki Daniel Marbun, zjweele13 , Judith Benavides, Znosheni Kedy, Caitlin de Falco, Scheherazade Kelii, Errys, James Bruening, Michael Braun-Boghos, Ricardo Diaz, Kack-Kyun Kim, Alexandrina Danifeld, Danny Romard, Yujing Jiang, Stina Boberg, Mariana Ortega, Anthony Wiggins, Hoai Nam Tran, Joe Sims, David Petrovič, Kat, Chris Adriaensen, Lowell Fleming, Lorenzo Margiotta, Amir Ghandeharioon, Anuj Tomar, Sunny Patel, Rachel Birenbaum, Vijayalakshmi , Devesh Kumar, Uday Kishore, Aidan Forero, Leen Mshasha, Allan Hayes, Thomas Bahrman, Alexander Baltadzhiev, Connor Yuzwenko-Martin, Vaibhav Mirjolkar, Tony, Michelle, Katie and Josh Pedretti, Erik Biemans, and Gaurav Mathur.