Explore how pneumonia attacks the tiny air sacs in your lungs and how your immune system works to fight off the infection. -- Every time you breathe, air travels down the trachea, through a series of channels, and then reaches little clusters of air sacs in the lungs. These tiny sacs facilitate a crucial exchange: allowing oxygen from the air we breathe into the bloodstream and clearing out carbon dioxide. Pneumonia wreaks havoc on this exchange system. Eve Gaus and Vanessa Ruiz detail how pneumonia attacks the lungs. Lesson by Eve Gaus and Vanessa Ruiz, directed by Artrake Studio. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/why-is-pneumonia-so-dangerous-eve-gaus-and-vanessa-ruiz Dig deeper with additional resources: https://ed.ted.com/lessons/why-is-pneumonia-so-dangerous-eve-gaus-and-vanessa-ruiz#digdeeper Animator's website: https://www.artrake.com/ ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Declan Manning, varun, Cindy Flores, Anantha RamaKrishnan, Javier Aldavaz, Ivan Yeung, Jaime Camacho, Irene Au, Shannon Lee, Роман Валесюк, LunarQueen, Iza, Brian Elieson, Paul, Grayson Garbarino, Oge O, Weronika Falkowska, Stefano Esposito, Jan M. Brandt, Harshal, Nevin Spoljaric, Christine, Yvonne Feijoo, Sid Chanpuriya, Arjay Arcinue Dineros, RAD, Anoom Yasmin, Laura Johnson, Anoop Varghese, David Yastremski, Noah Webb, Zoë Tulip, B, Erica Guerrero, Richard Manklow, Roberto Chena, Luke Pisano, Andrea Gordon, Aleksandar Donev, Brendan and Nicole's summer job, Ryan Weiler, Jesse Lira, Ezekiel Raui, Itay Levi, Cameron Chakraverty, Petr Vacek, Rhys Patterson, Dennis, Margaret King and Olivia Fu.